Solution

db/models.py

@@ -1 +1,31 @@
 from django.db import models
+
+
+class Race(models.Model):
+    name = models.CharField(max_length=255, unique=True)
+    description = models.TextField(blank=True)
+
+
+class Skill(models.Model):
+    name = models.CharField(max_length=255, unique=True)
+    bonus = models.CharField(max_length=255)
+    race = models.ForeignKey(Race, on_delete=models.CASCADE,
+                             related_name="skills")
+
+
+class Guild(models.Model):
+    name = models.CharField(max_length=255, unique=True)
+    description = models.TextField(blank=True, null=True)
+
+
+class Player(models.Model):
+    nickname = models.CharField(max_length=255, unique=True)
+    email = models.EmailField(max_length=255)
+    bio = models.CharField(max_length=255)
+    race = models.ForeignKey(Race, on_delete=models.CASCADE,
+                             related_name="players")
+    guild = models.ForeignKey(Guild,
+                              on_delete=models.SET_NULL,
+                              null=True,
+                              blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)

main.py

@@ -1,10 +1,41 @@
 import init_django_orm  # noqa: F401
-
+import json
 from db.models import Race, Skill, Player, Guild
 
 
 def main() -> None:
-    pass
+    with open("players.json", "r") as f:
+        players = json.load(f)
+
+    for nickname, data in players.items():
+        race, _ = Race.objects.get_or_create(
+            name=data["race"]["name"],
+            defaults={"description": data["race"].get("description", "")}
+        )
+
+        for skill_data in data["race"].get("skills", []):
+            Skill.objects.get_or_create(
+                name=skill_data["name"],
+                race=race,
+                defaults={"bonus": skill_data["bonus"]}
+            )
+
+        guild = None
+        if data.get("guild"):
+            guild, _ = Guild.objects.get_or_create(
+                name=data["guild"]["name"],
+                defaults={"description": data["guild"].get("description")}
+            )
+
+        Player.objects.get_or_create(
+            nickname=nickname,
+            defaults={
+                "email": data["email"],
+                "bio": data["bio"],
+                "race": race,
+                "guild": guild,
+            }
+        )
 
 
 if __name__ == "__main__":