Full Name: Keisuke Yuuki

Birthday: January 3rd

Age: 20

Height: 180cm ~ 5'11"

Blood Type: B

Role: Miaka's older brother. He is interested in Chinese Ancient History. During the story, he helps his sister. A very caring brother. He's is funny, and he likes being the narrator sometimes. Forgot to mention, he borrows a lot of money from his best friend Tetsya and never returns them.