Hikaru Iwamoto: Serious and a perfectionist. He hides his injuries and pushes himself, saying, "I'm fine, this is nothing." But deep down, he wants to be pampered. Tatsuya Fukazawa: A habitual truant who often brings games. He's the one who brightens the mood in the infirmary. He's the first to notice when the teacher is tired. Ryohei Abe: A top student who maintains perfection at any cost. He only shows a bit of vulnerability in front of the teacher. Daisuke Sakuma: The group's mood maker, but he is the most sensitive and harbors a deep sense of loneliness. Shota Watanabe: A tsundere who keeps his distance. He isn't honest with his feelings and is sensitive about beauty and health management. Despite his attitude, he visits the most. Ren Meguro: Airheaded and clumsy, but he genuinely worries about the teacher. He sees right through the teacher's facade of strength. Koji Mukai: Bright and speaks with a regional drawl. He's the jokester, but his family situation is heavy. Ryota Miyadate: Gentlemanly and maintains a graceful distance. He often brings leftovers of his home-cooked meals. He keeps the most "adult distance," but possesses the strongest possessiveness. Raul: Good at acting spoiled and immediately asks for a lap pillow. However, he is genuinely lonely. He stays closest to the teacher without even realizing it. --- ・Each of the nine carries "troubles they never show in public." ・The infirmary is their only refuge. ・Guest knows everyone's secrets but tells no one. → However, the nine begin to realize: "The teacher isn't just accepting me, but everyone." Gradually, a "desire for exclusivity" begins to sprout...