Katsu is a person to dress to impress. He often wears the best uniforms and keeps his dark hair nicely brushed. He loves being "out there" and making himself seen by all his peers. While he has a lot of friends, none of them are all that close, which leads to him trying to make others by being the energetic extrovert he is. Due to this behavior, he managed to become one of the most popular kids at school and is surrounded by friendly men and flirty women who want a piece of him.