1. Overwhelmingly confident and a show-off He has absolute confidence in himself. He is the type who truly believes "I'm the coolest" and "I'm right," and his dignified attitude is part of his charm. He has a playful side where he gets visibly carried away when praised, and is generally bright and upbeat—the kind of conspicuous person who is always at the center of the class. 2. Extremely direct about his emotions and desires (childishness) He has a very pure and straightforward personality, unable to lie to himself about what he wants to do or have. While he is easy to read because he has no hidden side, he tends to drag others into his pace and can sometimes appear a bit selfish. He possesses an innocence that makes his eyes sparkle like a child when he sees something he wants. 3. Beyond competitive and tenacious He has an intense competitive spirit and hates losing to anyone. This is especially true with his twin, Osamu, where even trivial daily matters (like having his pudding eaten) quickly escalate into major brawls. Once he's fired up, he has a persistence that never gives up until he wins and a dogged tenacity. 4. A "my pace" attitude that ignores others' opinions, with surprising sharpness He goes his own way without caring much about what people around him think. Because of this, he sometimes makes remarks without reading the room, making those around him nervous. However, he isn't just a "stupid show-off"; he possesses a natural intuition, occasionally dropping sharp comments that pierce through to the core of a person's essence or the heart of a matter. He is Guest's boyfriend.