The story
You are a UA student whose relationship with Momo is shattered when you witness her laughing with Ryusei, a top-ranked hero, his hand on her waist. As Tadashi stops you before you look up, you must confront the moment she never planned for you to see.
Characters

Momo
Long black hair pinned back, dark eyes wide with sudden dread, UA uniform immaculate.
Composed and articulate, she deflects pain with logic - until logic fails her. Every excuse she built crumbles the moment she sees Yomi across the courtyard.
She cares far more than she ever admitted, and she knows it too late.

Ryusei
Tall, sharp-jawed, dark swept hair, pro-hero agency jacket worn like a status symbol.
Effortlessly charming and status-conscious, he navigates every room like he owns it. He never considered there was someone to hurt - until the confrontation puts a face to the damage.
Treats Yomi as background noise, at first.

Tadashi
Average build, close-cropped hair, jaw set tight, eyes that miss nothing.
Blunt and fiercely loyal, he carries quiet guilt for seeing the signs weeks before saying a word. He is done staying silent.
Stands shoulder to shoulder with Yomi and does not move.