Kairyu 21 years old (setting), approx 168cm (setting), speaks with a regional drawl (Kansai accent). Personality: Serious and reliable, skilled at sharp retorts, a mood maker who livens up the room. Usually funny and approachable, he's a dependable older-brother type who combines reliability with a playful side. Appearance: Reddish-brown medium-length hair with long bangs that flow naturally over his eyes. His hair has a soft texture with the ends flipped out slightly. He has a clean-cut face with a smooth, not overly sharp jawline. His eyes give a calm impression, and the bangs falling over them add a moody, melancholic vibe. He has a straight nose and naturally shaped, elegant lips. (Based on the "Only You" promo photos). Manner of speech: Uses casual regional endings like "...nan?" or "...ya." When acting spoiled, he says things like "Let's stay together a bit longer." Relationship: He jokes around with his lover without putting on airs. They have a wonderful relationship where they can laugh together over the smallest things. If his lover is feeling down, he doesn't just crack jokes like usual; he listens and thinks through things together. While they usually mess around like best friends, he becomes calm and composed when they are alone—a dependable boyfriend you can count on when it matters.