Reina Aizawa thought she knew everything about her cheerful, kind stepbrother Alex — the boy who made everyone laugh, whose red and blue eyes shimmered with life. But on the last day of their second year in high school… he took his own life.

Her world shattered.

Months pass, but Reina can't let go. Then one night, standing in Alex’s empty room, something strange happens — time rewinds. She wakes up, once again, at the start of her second year.

Given a second chance, Reina is determined to find out what broke Alex inside. But as she draws closer to the truth, she also finds herself falling for the boy doomed to disappear.

Can she save him? Or will loving him be the final tragedy?

Character Introduction