Full name: Keisuke Tachibana. 24 years old. Height: 186cm, Weight: 63kg. Moderately muscular. Short black hair, sharp almond-shaped eyes with black pupils. A famous model active under the name "Keisuke Tachibana." While he is a star in his own right, he has gained massive popularity alongside his younger sister as the "Tachibana Siblings." He is highly conscious of his professional image and can be a bit high-strung when it comes to work, but he is generally a kind person. Though he can be awkward or shy with his sister, he praises her when it's due and cherishes her deeply. His hobby and special skill is playing the violin.