diff --git a/internal/artifacts/aubade/aubade.go b/internal/artifacts/aubade/aubade.go
new file mode 100644
index 000000000..c627ffb88
--- /dev/null
+++ b/internal/artifacts/aubade/aubade.go
@@ -0,0 +1,110 @@
+package aubade
+
+import (
+	"fmt"
+
+	"github.com/genshinsim/gcsim/pkg/core"
+	"github.com/genshinsim/gcsim/pkg/core/attacks"
+	"github.com/genshinsim/gcsim/pkg/core/attributes"
+	"github.com/genshinsim/gcsim/pkg/core/event"
+	"github.com/genshinsim/gcsim/pkg/core/glog"
+	"github.com/genshinsim/gcsim/pkg/core/info"
+	"github.com/genshinsim/gcsim/pkg/core/keys"
+	"github.com/genshinsim/gcsim/pkg/core/player/character"
+	"github.com/genshinsim/gcsim/pkg/modifier"
+)
+
+func init() {
+	core.RegisterSetFunc(keys.AubadeOfMorningstarAndMoon, NewSet)
+}
+
+type Set struct {
+	lastSwap int
+	core     *core.Core
+	char     *character.CharWrapper
+	buff     float64
+	Index    int
+	Count    int
+}
+
+func (s *Set) SetIndex(idx int) { s.Index = idx }
+func (s *Set) GetCount() int    { return s.Count }
+func (s *Set) Init() error {
+	m := 0.2
+	if s.core.Player.GetMoonsignLevel() >= 2 {
+		m += 0.4
+	}
+	if s.Count >= 4 && s.core.Player.Active() != s.char.Index() {
+		s.gainBuff(m)
+	}
+	return nil
+}
+
+func NewSet(core *core.Core, char *character.CharWrapper, count int, param map[string]int) (info.Set, error) {
+	s := Set{
+		core:     core,
+		char:     char,
+		lastSwap: -1,
+		Count:    count,
+	}
+	if count >= 2 {
+		m := make([]float64, attributes.EndStatType)
+		m[attributes.EM] = 80
+		char.AddStatMod(character.StatMod{
+			Base:         modifier.NewBase("aubade-2pc", -1),
+			AffectedStat: attributes.EM,
+			Amount: func() []float64 {
+				return m
+			},
+		})
+	}
+	if count >= 4 {
+		m := 0.2
+		if core.Player.GetMoonsignLevel() >= 2 {
+			m += 0.4
+		}
+
+		core.Events.Subscribe(event.OnCharacterSwap, func(args ...any) {
+			prev := args[0].(int)
+			next := args[1].(int)
+			if prev == char.Index() {
+				s.lastSwap = -1
+				s.gainBuff(m)
+			} else if next == char.Index() {
+				s.lastSwap = core.F
+				core.Tasks.Add(s.clearBuff(core.F), 3*60)
+			}
+		}, fmt.Sprintf("aubade-4pc-%v", char.Base.Key.String()))
+
+		char.AddReactBonusMod(character.ReactBonusMod{
+			Base: modifier.NewBase("aubade-4pc", -1),
+			Amount: func(ai info.AttackInfo) float64 {
+				if ai.AttackTag > attacks.LunarReactionStartDelim && ai.AttackTag < attacks.DirectLunarReactionEndDelim {
+					return s.buff
+				}
+				return 0
+			},
+		})
+	}
+
+	return &s, nil
+}
+
+func (s *Set) gainBuff(m float64) {
+	s.buff = m
+	s.core.Log.NewEvent("aubade of morningstar and moon 4pc proc'd", glog.LogArtifactEvent, s.char.Index())
+}
+
+func (s *Set) clearBuff(src int) func() {
+	return func() {
+		if s.lastSwap != src {
+			return
+		}
+		if s.core.Player.Active() != s.char.Index() {
+			return
+		}
+
+		s.buff = 0
+		s.core.Log.NewEvent("aubade of morningstar and moon 4pc lost", glog.LogArtifactEvent, s.char.Index())
+	}
+}
diff --git a/internal/artifacts/aubade/config.yml b/internal/artifacts/aubade/config.yml
new file mode 100644
index 000000000..e08ea127d
--- /dev/null
+++ b/internal/artifacts/aubade/config.yml
@@ -0,0 +1,2 @@
+key: aubade
+set_id: 15043
diff --git a/internal/services/assets/artifacts_gen.go b/internal/services/assets/artifacts_gen.go
index 5bfee63e2..8fbbd3b00 100644
--- a/internal/services/assets/artifacts_gen.go
+++ b/internal/services/assets/artifacts_gen.go
@@ -7,6 +7,11 @@ var artfactMap = map[string]string{
 	"archaicpetra_goblet":                        "UI_RelicIcon_15014_1",
 	"archaicpetra_plume":                         "UI_RelicIcon_15014_2",
 	"archaicpetra_sands":                         "UI_RelicIcon_15014_5",
+	"aubade_circlet":                             "UI_RelicIcon_15043_3",
+	"aubade_flower":                              "UI_RelicIcon_15043_4",
+	"aubade_goblet":                              "UI_RelicIcon_15043_1",
+	"aubade_plume":                               "UI_RelicIcon_15043_2",
+	"aubade_sands":                               "UI_RelicIcon_15043_5",
 	"berserker_circlet":                          "UI_RelicIcon_10005_3",
 	"berserker_flower":                           "UI_RelicIcon_10005_4",
 	"berserker_goblet":                           "UI_RelicIcon_10005_1",
diff --git a/pkg/core/keys/sets.go b/pkg/core/keys/sets.go
index aa812d6ec..e8640b041 100644
--- a/pkg/core/keys/sets.go
+++ b/pkg/core/keys/sets.go
@@ -35,6 +35,7 @@ var setNames = []string{
 	"",
 	"adventurer",
 	"archaicpetra",
+	"aubadeofmorningstarandmoon",
 	"berserker",
 	"blizzardstrayer",
 	"bloodstainedchivalry",
@@ -96,6 +97,7 @@ const (
 	NoSet Set = iota
 	Adventurer
 	ArchaicPetra
+	AubadeOfMorningstarAndMoon
 	Berserker
 	BlizzardStrayer
 	BloodstainedChivalry
diff --git a/pkg/shortcut/artifacts.go b/pkg/shortcut/artifacts.go
index ca48d535c..7bca6f610 100644
--- a/pkg/shortcut/artifacts.go
+++ b/pkg/shortcut/artifacts.go
@@ -6,6 +6,9 @@ var SetNameToKey = map[string]keys.Set{
 	"adventurer":                         keys.Adventurer,
 	"archaicpetra":                       keys.ArchaicPetra,
 	"ap":                                 keys.ArchaicPetra,
+	"aubadeofmorningstarandmoon":         keys.AubadeOfMorningstarAndMoon,
+	"aubadeofmorningstar":                keys.AubadeOfMorningstarAndMoon,
+	"aubade":                             keys.AubadeOfMorningstarAndMoon,
 	"berserker":                          keys.Berserker,
 	"blizzardstrayer":                    keys.BlizzardStrayer,
 	"blizzard":                           keys.BlizzardStrayer,
diff --git a/pkg/simulation/imports.go b/pkg/simulation/imports.go
index 93fffc8b5..0e9e0cf97 100644
--- a/pkg/simulation/imports.go
+++ b/pkg/simulation/imports.go
@@ -15,6 +15,7 @@ import (
 
 	// artifacts
 	_ "github.com/genshinsim/gcsim/internal/artifacts/archaic"
+	_ "github.com/genshinsim/gcsim/internal/artifacts/aubade"
 	_ "github.com/genshinsim/gcsim/internal/artifacts/berserker"
 	_ "github.com/genshinsim/gcsim/internal/artifacts/blizzard"
 	_ "github.com/genshinsim/gcsim/internal/artifacts/bloodstained"
diff --git a/ui/packages/docs/docs/reference/artifacts/aubade.md b/ui/packages/docs/docs/reference/artifacts/aubade.md
new file mode 100644
index 000000000..cb622b7c6
--- /dev/null
+++ b/ui/packages/docs/docs/reference/artifacts/aubade.md
@@ -0,0 +1,30 @@
+---
+title: >
+  Aubade of Morningstar and Moon
+---
+
+import AoETable from "@site/src/components/AoE/AoETable";
+import IssuesTable from "@site/src/components/Issues/IssuesTable";
+import NamesList from "@site/src/components/Names/NamesList";
+import ParamsTable from "@site/src/components/Params/ParamsTable";
+import FieldsTable from "@site/src/components/Fields/FieldsTable";
+
+## AoE Data
+
+<AoETable item_key="aubade" data_src="artifact" />
+
+## Known issues
+
+<IssuesTable item_key="aubade" data_src="artifact" />
+
+## Names
+
+<NamesList item_key="aubade" data_src="artifact" />
+
+## Params
+
+<ParamsTable item_key="aubade" data_src="artifact" />
+
+## Fields
+
+<FieldsTable item_key="aubade" data_src="artifact" />
diff --git a/ui/packages/docs/src/components/Names/artifact_data.json b/ui/packages/docs/src/components/Names/artifact_data.json
index c803d26fa..8dd81eff2 100644
--- a/ui/packages/docs/src/components/Names/artifact_data.json
+++ b/ui/packages/docs/src/components/Names/artifact_data.json
@@ -2,6 +2,10 @@
   "archaicpetra": [
     "ap"
   ],
+  "aubadeofmorningstarandmoon": [
+    "aubadeofmorningstar",
+    "aubade"
+  ],
   "berserker": [],
   "blizzardstrayer": [
     "blizzard",
diff --git a/ui/packages/localization/src/locales/names.generated.json b/ui/packages/localization/src/locales/names.generated.json
index 78c0d23da..9de255c16 100644
--- a/ui/packages/localization/src/locales/names.generated.json
+++ b/ui/packages/localization/src/locales/names.generated.json
@@ -334,6 +334,7 @@
       },
       "artifact_names": {
          "archaicpetra": "悠古的磐岩",
+         "aubade": "晨星与月的晓歌",
          "berserker": "战狂",
          "blizzardstrayer": "冰风迷途的勇士",
          "bloodstainedchivalry": "染血的骑士道",
@@ -1130,6 +1131,7 @@
       },
       "artifact_names": {
          "archaicpetra": "Archaic Petra",
+         "aubade": "Aubade of Morningstar and Moon",
          "berserker": "Berserker",
          "blizzardstrayer": "Blizzard Strayer",
          "bloodstainedchivalry": "Bloodstained Chivalry",
@@ -1926,6 +1928,7 @@
       },
       "artifact_names": {
          "archaicpetra": "Archaischer Fels",
+         "aubade": "Gesang von Stern und Mond",
          "berserker": "Berserker",
          "blizzardstrayer": "Im Schnee irrender Recke",
          "bloodstainedchivalry": "Blutiger Weg eines Ritters",
@@ -2722,6 +2725,7 @@
       },
       "artifact_names": {
          "archaicpetra": "悠久の磐岩",
+         "aubade": "暁の星と月の歌",
          "berserker": "狂戦士",
          "blizzardstrayer": "氷風を彷徨う勇士",
          "bloodstainedchivalry": "血染めの騎士道",
@@ -3518,6 +3522,7 @@
       },
       "artifact_names": {
          "archaicpetra": "유구한 반암",
+         "aubade": "샛별과 달의 여명",
          "berserker": "전투광",
          "blizzardstrayer": "얼음바람 속에서 길잃은 용사",
          "bloodstainedchivalry": "피에 물든 기사도",
@@ -4314,6 +4319,7 @@
       },
       "artifact_names": {
          "archaicpetra": "Архаичный камень",
+         "aubade": "Рассветная песнь звезды и луны",
          "berserker": "Берсерк",
          "blizzardstrayer": "Заблудший в метели",
          "bloodstainedchivalry": "Рыцарь крови",
@@ -5110,6 +5116,7 @@
       },
       "artifact_names": {
          "archaicpetra": "Petra Arcaica",
+         "aubade": "Alborada de la Estrella del Alba y la Luna",
          "berserker": "Berserker",
          "blizzardstrayer": "Nómada del Invierno",
          "bloodstainedchivalry": "Caballería Sanguinaria",
diff --git a/ui/packages/ui/src/Data/artifact_data.generated.json b/ui/packages/ui/src/Data/artifact_data.generated.json
index 57d052383..082b384c7 100644
--- a/ui/packages/ui/src/Data/artifact_data.generated.json
+++ b/ui/packages/ui/src/Data/artifact_data.generated.json
@@ -5,6 +5,11 @@
       "text_map_id": "2040573235",
       "key": "archaicpetra"
     },
+    "aubade": {
+      "id": "15043",
+      "text_map_id": "894629371",
+      "key": "aubade"
+    },
     "berserker": {
       "id": "10005",
       "text_map_id": "855894507",