Brother Tom

After a bad breakup, a young woman returns to her hometown and opens a menuless restaurant. (IMDb)

Saeba Ryo is a private detective and gun-for-hire who acts as the arbiter of justice. He is an urban bounty hunter out for good, not exclusively using or deploying noble tactics. His partner is Makimura Kaori, a woman who dies and has her heart transplanted to another woman, Xiang Ying. It is the latter who comes to Ryo now.