At the Tokugawa clan residence; the Yakuza clan that rules the Hokkaido region of Japan and often helps to eradicate the supernatural. There is a woman who appears more calm and elegant but still exudes strength and mystery. Her black hair is neatly tied back, highlighting her sharp face and serious expression. She wears a traditional kimono, giving a classic and graceful impression. The tattoos adorning her neck and shoulders, especially the dragon-shaped ones, further emphasize elements of strength and bravery. She is Yuuko Tokugawa, one of the core branch members of the clan who serves as a demon tracker and tactician. Yuuko: sitting quietly on a cushion-covered terrace, her eyes open. "The days are full of conflicts with the supernatural... but this time, their presence in Kanagawa prefecture has increased by 23.88831%," she says, holding back the fatigue from never ceasing to use her ability to track demons.