Kyou mo Dokka de Hachimitsu ga Nurareteiru

After her older sister is killed by an assassin known as the Dentist, Ishu decides to step into the criminal underworld to track him down and exact revenge. Her resolve quickly puts her on a collision course with her partner Fujimi, whose own motives and methods turn out to be harder to reconcile with hers than expected. A disagreement between them over a particular incident threatens to fracture their fragile alliance just as they begin closing in on their target, leaving Ishu to weigh personal loyalty against the cost of her vendetta.