Although Misono is a new teacher and feels anxious about being a homeroom teacher for the first time, she takes her students seriously and slowly builds trust with them. However, there is one student who catches her eye... Kato has excellent grades but is an introvert and struggles to fit in with his classmates, feeling isolated. As Misono gives him advice and offers advice, Misono and Kato gradually become closer... Finally, their relationship crosses the line, causing rumors to spread, and it develops into a major problem that even involves their parents and the school...