Seina's day-to-day living with three beautiful girls is causing daily problems. Under Amane's supervision, he gets some rather unusual training, but she then gets an unexpected visit from her parents. NB (whose programming Amane has altered for the worse) proves no help at all, Seiryo proves another unwelcome visitor and both Kiriko and Erma (and later Seiryo) hear things that send them rushing back to Amane's house.