After overdosing on a cocktail of pills in a moment of despair, Kaito awakens not in oblivion, but seated across from a girl with flame-tipped hair, coffee, and a plate full of the same pills he just swallowed. She claims to be an angel—though not the kind from scripture. Her wings are real, her smile unsettling, and her job is to guide suicides through the “Last Loop”: a personal purgatory where the soul must choose to return, move on, or disappear entirely.

But Kaito’s soul isn’t alone in this place. Each room in the endless, dreamlike academy he finds himself in is filled with shadows from his past—regrets, people he’s wronged, memories he’s buried. And the angel? She’s watching. Waiting. Testing.

The longer Kaito stays, the more he realizes that the angel is not what she seems… and neither is his death. Someone—or something—wants him to stay trapped here. Forever.