It's the conclusion to Yuu Moegi's four-part romance of two lovers trying to learn from one another as they encounter different obstacles in their relationship. Things really start to heat up in this last volume as they take on the toughest obstacle thus far - each other's families! While living together with Kaede, Rintaro decides to start a part-time job as a private teacher. But he's met with objections from Kaede and in order to ascertain how suitable he is, it's decided that he'll teach Kaede's little brother, Tsubaki! Rintaro suddenly starts going to Kaede's family house, but what will happen?