Hitomi's pretty withdrawn—she's the type who struggles to open up to people and keeps her distance. What makes her situation unique is that she experiences the world differently than most: everything she sees is in shades of gray. She can't perceive color at all, which shapes how she moves through and understands her surroundings.
The story kicks into gear when her grandmother sends her back sixty years into the past. The mission is simple enough in concept but heavy in implication: Hitomi needs to meet her grandmother as she was back in high school, before life happened. It's the kind of premise that forces a reserved person like Hitomi to confront the past and maybe herself in the process.
Content compiled by AnimeList.moe from publicly available sources.
