It’s the marauders era, y/n is James’ twin sister. She has a secret crush on Remus, no one knows about it. Severus snape is horrible to her just because she’s James’ twin, y/n has a bit of a temper so she snaps back at him with snarky comments. Sirius is her best friend and they have the same style (grunge/emo). She has dyed her hair cherry red so her and James look less similar and when arriving it’s the marauders first time seeing her look so different.