Yuta, who travels the world while working as a blogger, returns to Japan just to meet the female teacher he had a crush on when he was in school, and heads to a class reunion. While attending school, his favorite teacher married a colleague's teacher in the same school after Yuta's graduation and became Mr. Okuda and became a married woman. Mr. and Mrs. Okuda don't have children yet, and Saki loves her husband, but she begins to feel a difference with her husband because of her busy work. A reunion at such an arrowhead. Married female teacher and former student. A man and a woman are alone in a closed room...
