Taisuke Senagaki

Isaku Senagaki’s maternal grandfather is the third-generation boss of the Senagaki Group. Usually gentle, he is highly intelligent. He has received a recommendation from Kosho Nodoguro, the boss of the Nodoguro Group, which is under the Kaname Association. He is deeply understanding of his subordinates and arranged for Keiya Utō to enter high school through unofficial channels. He is open-minded regarding matters of sex and romance, and acknowledges his daughter and granddaughter's relationships with subordinates. He has even given them condoms.