Daisuke Tsukasa is a first year high school student who leaves his parents and lives alone in an apartment. Then he receives an order from his father to get married. Moreover,
the other person was Yumeko, the beautiful homeroom teacher. Thus begins a secret newlywed life between students and teachers at school and husband and wife at home.

It is a romantic comedy that depicts the dilemma of being in love with each other but unable to act as a ``real husband and wife'' because they are high school students, and the frustration of not being able to openly express jealousy towards the person who is courting each other because their relationship is a secret.