1 Where you belong

Hitomi Tsukishiro, a teenage girl born into a family of mages, has lost her sense of color mysteriously, becoming placid and socially withdraw.

The world she sees was different from the world others saw. She had to live everyday in a black and white colorless world.

Kohaku Tsukishiro, Hitomi's grandmother, no longer wanting to see her granddaughter in loneliness and in hopes to end her suffering, decides to use time magic to transport Hitomi back in time to meet her 17-year-old self. The magic brings Hitomi 60 years back to 2018 where she finds herself smacked right into the room of a boy.