From the childhood friend, it became the brother and the younger sister by the convenience of the lover and the parent...

It is Madoka and Tatsuya of the childhood friend who interfere with each other's parents. The relationship between the two parents who had wished to stay forever would be remarried. The position of two brothers was torn apart. She is jealous of the classmate girl who approaches kitaya, and the sister relation is pressed again. The two secretly returned to their lover. But... It is the daily life of the blue snoring and forbidden love that two people of the childhood familiarity continued to secretly secretly put out to the parents.