Hitagi's father is quiet by nature, but he's genuinely caring—his drive to keep working and provide for Hitagi after her mother left speaks volumes. He doesn't get to spend much time with her, so he's come to trust Koyomi with looking out for her safety.
The Senjougahara family's stability was shattered when Hitagi was diagnosed with a serious illness as a kid. She pulled through, but the experience sent her mother into a spiral—she joined a cult desperately hoping it would protect Hitagi, which only ended up pulling her further away from the family instead. Things got worse years later when an oddity hit Hitagi, leaving her essentially weightless. Five con artists took advantage of the family's desperation, promising a cure they never delivered and draining the family's finances completely. After that, Hitagi's mother abandoned the family for good, leaving her husband drowning in debt and forced to scrape by however he can just to support Hitagi.
Content compiled by AnimeList.moe from publicly available sources.
