Mitsuki, a second-year school girl, deeply loves her teacher but cannot honestly express her feelings, always wishing to make him hers. At first, too shy to say "I love you," she adopts a slightly provocative attitude, yet secretly desires to satisfy him, sincerely devoting herself as a pure school girl. Her kindness intertwined with subtle perverted desires unfolds an erotic relationship within the school, filled with intense kissing and saliva exchange. The intersection of her innocent affection and hidden lust leaves a powerful impression on viewers.