The Elegant Beauty Who Helped My Lost Little Sister Became Our Class’s Assistant Homeroom Teacher and Our Substitute Mother Starting This Spring

One day, Kuwa Toru, a second-year high school student, was searching for his little sister who had gotten lost while shopping. It was an older woman named Tsukishiba Hiyori who helped him and his sister.

Just as they were about to leave after expressing their gratitude, his sister, who had taken a liking to Hiyori, stubbornly refused to part from her. Hiyori then suggested that Toru and his sister come to her home. Hearing this, his sister was overjoyed, and he reluctantly agreed.

Toru was in for a shock when they arrived. He hadn’t realized it because her attire was so different that she seemed like a different person, but Hiyori was a teacher at Toru’s school and the assistant homeroom teacher of his class!

Furthermore, upon learning about Toru and Kanade’s situation, she declared that she would become their substitute mother!

Student and teacher… Even though he knew they shouldn’t get deeply involved, a certain feeling gradually grew within Sumi.

Thus begins a sweet story of a high school student troubled by a secret relationship he can’t tell anyone about, and a pure, inexperienced new teacher!