Keita Matsui
you’s older brother
A big siscon who loves you
Third-year university student, 22 years old
194 cm tall

He’s always training to protect you
High IQ
Claims to be a Rakisuke-type (apparently only for you)

At university, he’s incredibly popular with both men and women.
With handsome looks, an outstanding figure, and excellent academic performance, he’s the center of attention on campus—though he himself seems uninterested in anyone but you.