diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..32b004a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,13 @@
+# .editorconfig
+
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+max_line_length = 120
+
+[*.{kt,kts}]
+ij_kotlin_code_style_defaults = KOTLIN_OFFICIAL
+ij_kotlin_allow_trailing_comma = true
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..5a90f99
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,2 @@
+# *.kt *.kts @songkg7
+/.github/ @songkg7
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..823e1df
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,7 @@
+## ✏️ 구현 내용
+
+[//]: # (- 구현한 내용, 혹은 구현하고자 한 내용에 대해서 간단하게 적어주세요!)
+
+## 🤔 논의하고 싶은 내용 / 질문 등
+
+[//]: # (- 학습 내용 기반의 추가적인 논의나 질문 거리에 대해서 작성해주세요)
diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
new file mode 100644
index 0000000..8167172
--- /dev/null
+++ b/.github/workflows/codecov.yml
@@ -0,0 +1,32 @@
+name: codecov
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+jobs:
+  test:
+    name: Test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, macos-latest, windows-latest ]
+    env:
+      OS: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@master
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'adopt'
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+      - name: Generate coverage report
+        run: ./gradlew testCoverage
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          env_vars: OS
+          file: ./build/reports/jacoco/test/jacocoTestReport.xml
diff --git a/.github/workflows/ktlint-check.yml b/.github/workflows/ktlint-check.yml
new file mode 100644
index 0000000..60e2dc9
--- /dev/null
+++ b/.github/workflows/ktlint-check.yml
@@ -0,0 +1,18 @@
+name: ktlint
+on:
+  pull_request:
+    branches: [ main ]
+jobs:
+  ktlint:
+    name: Check Code Quality
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone repo
+        uses: actions/checkout@master
+        with:
+          fetch-depth: 1
+      - name: ktlint
+        uses: ScaCap/action-ktlint@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          fail_on_error: true
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b63da45
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..bfa024e
--- /dev/null
+++ b/README.md
@@ -0,0 +1,50 @@
+# Kotlin Lotto
+
+## 목표
+
+우리가 집중해야하는 것들입니다.
+
+- 단순한 로또뿐만 아니라 미국의 슈퍼볼 방식도 가능하다면 재미있지 않을까?
+- 이 코드를 보니 팀원이 뭔가 구현하려던거 같은데 그게 뭘까?
+- 어떻게 코드를 작성해야 다음 팀원이 이해하기 쉬울까?
+- 사용해보고 싶었던 기술이 있었는데 한 번 이야기를 나눠보자!
+
+이 스터디는 **요구사항 및 기능을 직접 정의**해나가면서, **페어 프로그래밍을 위한 커뮤니케이션**에 초점을 맞추고 있어요. 부담갖지 마시고 하고 싶은 모든 걸 해보시기 바랍니다. 이전 팀원이 추가한 기술이나 구현 방식이 새롭게 다가오는 기술이라면, 이야기해볼 수 있는 좋은 기회가 될거에요!
+
+## 진행 과정
+
+먼저 모든 팀원은 미션 저장소를 자신의 개인 저장소로 fork 합니다.
+
+1. 기능과 관련된 적절한 이름의 branch 를 생성 후 commit 합니다.
+2. 2번의 과정이 끝나면 local 에만 변경사항이 반영되어 있으므로 본인의 remote 저장소에 push 합니다.
+3. 본인의 remote 저장소에 push 가 완료되면, github 에서 pull request 를 생성합니다.
+4. (Optional) 아직 기능이 완성되진 않았지만, 진행상황 공유 등의 이유로 PR 을 먼저 생성하고 싶다면 draft 로 생성합니다.
+5. Ready 상태의 PR 이 생성되면 리뷰어들은 코드 리뷰를 시작합니다.
+6. 리뷰가 완료되면 assignee 는 PR 을 merge 하고, 다음 주차의 assignee 는 위 과정을 반복합니다.
+
+## 규칙
+
+- PR 은 다음 팀원이 이어서 진행하기 쉽도록 가급적 본인이 생각하는 가장 작은 기능 단위로 생성해주세요
+    - 중간에 구현이 막혔다면, 어떤걸 하려했고 어떤 부분이 막혔는지를 대략적으로 적어두고 PR 을 생성해주세요
+    - 이것밖에 구현 못했는데 괜찮나? 라고 생각하지 않아도 괜찮습니다. 그냥 마음편히 던지세요! 코드의 절대적인 양은 이 스터디에서 중요하지 않습니다.
+- 테스트 코드를 작성해주세요
+- 항상 실행가능한 상태를 유지해주세요
+- Kotest Spec 은 AnnotationSpec 을 제외한 나머지를 선호에 따라 자유롭게 사용합니다
+- Ktlint 는 가급적 모두 통과시켜주세요
+    - 다소 엄격하다고 생각될 수 있지만, Standard rule 로 설정되어 있으므로 Kotlin 진영에서 권장하는 스타일은 무엇인지 살펴볼 수 있는 기회가 될거에요
+
+## 가이드
+
+아래는 로또에 대한 가장 기본적인 규칙이에요. 뭘 구현해야할지 막막하다면 현재 진행상황과 아래 규칙을 비교해보세요!
+
+- 구입 금액 입력
+- 구입 금액에 따라 1장에 1000원씩 계산하여 로또 발급하기
+- 로또 한장에는 6개의 숫자가 담겨있다
+- 수동으로 구매한 로또 수 입력
+    - 입력한 금액을 벗어나는 경우 예외 처리
+- 수동 로또수에 따라 하나의 로또당 6개의 번호를 입력해야함
+- 수동 로또를 제외하고 나머지 금액은 자동 로또 발급
+- 지난 주 당첨 번호와 보너스볼을 입력
+- 당첨번호와 보너스볼과 일치하는 개수에 따라 통계를 내기
+- 통계에는 3개 일치, 4개 일치, 5개 일치, 5개 일치 + 보너스볼 , 6개 일치하는 로또 개수를 보여주고, 수익률을 계산한다.(기준 1)
+    - 수익률은 당첨 금액 / 원금 으로 계산한다.
diff --git a/build.gradle.kts b/build.gradle.kts
new file mode 100644
index 0000000..a3a0e35
--- /dev/null
+++ b/build.gradle.kts
@@ -0,0 +1,75 @@
+plugins {
+    kotlin("jvm") version "1.9.0"
+    id("org.jlleitschuh.gradle.ktlint") version "11.5.1"
+    jacoco
+}
+
+jacoco {
+    toolVersion = "0.8.8"
+}
+
+group = "org.livid"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+}
+
+val kotestVersion = "5.7.2"
+
+dependencies {
+    testImplementation("io.kotest:kotest-runner-junit5:$kotestVersion")
+    testImplementation("io.kotest:kotest-assertions-core:$kotestVersion")
+    testImplementation(kotlin("test"))
+}
+
+tasks.test {
+    extensions.configure(JacocoTaskExtension::class) {
+        destinationFile = file("$buildDir/jacoco/jacoco.exec")
+    }
+
+    finalizedBy("jacocoTestReport")
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+
+tasks.jacocoTestReport {
+    reports {
+        html.required.set(true)
+        xml.required.set(true)
+        csv.required.set(false)
+    }
+
+    finalizedBy("jacocoTestCoverageVerification")
+}
+
+tasks.jacocoTestCoverageVerification {
+    violationRules {
+        rule {
+            element = "CLASS"
+            limit {
+                minimum = "0.70".toBigDecimal()
+            }
+        }
+    }
+}
+
+kotlin {
+    jvmToolchain(8)
+}
+
+val testCoverage by tasks.registering {
+    group = "verification"
+    description = "Runs the unit tests with coverage"
+
+    dependsOn(
+        ":test",
+        ":jacocoTestReport",
+        ":jacocoTestCoverageVerification"
+    )
+
+    tasks["jacocoTestReport"].mustRunAfter(tasks["test"])
+    tasks["jacocoTestCoverageVerification"].mustRunAfter(tasks["jacocoTestReport"])
+}
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..7fc6f1f
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1 @@
+kotlin.code.style=official
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..249e583
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..06febab
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
\ No newline at end of file
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..1b6c787
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..107acd3
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle.kts b/settings.gradle.kts
new file mode 100644
index 0000000..a9f828c
--- /dev/null
+++ b/settings.gradle.kts
@@ -0,0 +1,12 @@
+pluginManagement {
+    repositories {
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "0.5.0"
+}
+
+rootProject.name = "kotlin-lotto-pair-programming"