Gimai Seikatsu

Yuuta Asamura got a step-sister after his father remarried. Saki Ayase was very famous in the school and was one of the beauties of the school year. They promise each other that they will remain at a certain distance and never get too close or oppose each other. They learn the importance of men and women in their lives.

Yuuta was unsure about her behavior and didn’t know how to treat her and similarly, Saki had no idea at all. This relation slowly leads them into love.