クール会長凛のいいなり一週間～破廉恥命令で恋人子作り好きのスケベ子宮になってしまう！～

The main character, Harada Kyouichi is excellent at but not interested in fencing. His childhood friend Rin is angered by this and challenges him to a duel. He accepts on the condition that if she loses, she has to follow a weekly order from him.

He defeated Rin who surrendered. Unexpectedly she accepts the conditions and immediately recognizes she loves him. They become lovers and begin a romantic school life.