Somewhere, Someone Is Spreading Honey TodayNewKyou mo Dokka de Hachimitsu ga Nurarete Iru; 今日もどっかで蜂蜜が塗られている

Nishu's older sister was murdered by an assassin known as the "Dentist." Determined to avenge her, she plunges into the underworld herself. However, she ends up clashing with her partner, Fujimi, over a certain matter, and then...?