From the time he was very young, Shuuta longed to be "married" through adoption to Kouhei. While Kouhei, as a guardian, was too absentminded, Shuuta always felt as if he never fulfilled his duties to him as a "wife".

It's a love story between an airheaded, thick-skinned, handsome "husband" and an innocent, pure-hearted new "wife" – with an age gap!