At a prestigious school ● A married woman teacher, Tsukasa, who teaches as a school teacher, worked on fertility in the fourth year of marriage and lived a happy married life. Tsukasa, who cherishes the couple's time no matter how tired he is because he loves her husband from the bottom of his heart, will avoid the couple's time after that day ... That day when he became an adviser to the swimming club I should help the students from bullying, but ...