Yukemuri Sniper(2009)

Yukemuri Sniper is a Japanese series following Gen, a former assassin who seeks redemption by working as an attendant at a remote mountain hot-springs resort. Hoping to leave his violent past behind, Gen befriends Suzuyo, a housekeeper at the inn. When Suzuyo's abusive ex-husband Tagawa, a gangster, arrives to extort money from her, Gen's quiet new life is disrupted. Torn between his desire for peace and his instinct to protect those he cares about, Gen must confront the very world he tried to escape. The series blends crime drama with intimate character moments as Gen navigates whether redemption is truly possible for someone with his background.