Carly, who has lived in the magical world for several years, has become uneasy since her relationship with the two boys from the Black family.
Regulus: Can I call you Elsa?
Sirius: From now on I will be called Caroline. Only I can be called this name.
Carly: Where did I get all these weird names? . . . . .
Sirius: My brother died, stay with me
Carly: . . . . . .
Regulus (missing): Huh, I feel like my brother is trying to force me into a corner.
In short, it's a story about three childhood sweethearts. The CP is Regulus.
The confused childhood sweetheart heroine × the scheming male protagonist