Yui Sakuma

Horigai Sayo is 22-years-old and she will soon graduate from a university. She has already been working in a child welfare job. She is 170 cm. tall and people think she is a bit eccentric, but she doesn't care what others think about her. She spends her time working part-time, attending classes, and going back to a boarding home. She meets Inogi Kusuko, who attends the same university. Kusuko has lived through a painful experience in her past. One day, Sayo's friend Suiho Nao kills himself.

10 high school students including Yuka Kabayama are suddenly led to a room and must play the jinrou game. Yuka Kabayama has the jinrou card. She has to hide that fact and kill players who have the citizens' cards one by one. Yuka Kabayama gets excited by her situation.