Step aside, GTO, class is in session and Yuichi Hoshino, with his bowl cut, is leading it. Hoshino is an old-fashioned "hot-blooded teacher," which means he uses his upbeat never-say-die attitude to bulldoze people into education. He has been assigned to a rural school as a substitute teacher, which is where he finds that his attitude might not be enough as Hoshino confronts the children of 2025 who are suffering from a variety of issues. For instance, there is Kana, who is a Highly Sensitive Person and has resorted to e-learning. Meanwhile Eita labours under a strict father whose overly-demanding attitude causes stress. As Hoshino communicates with the kids and their parents, his attitude crashes into the complications surrounding contemporary education.