The situation spirals even further out of control as close encounters of the twisted kind between the residents of the planet Develuke (represented primarily by female members of the royal family) and the inhabitants of Earth (represented primarily by one very exhausted Rito Yuki) continue to escalate. Things SHOULD be easy sailing for junior princesses Nana and Momo when they went to Earth School, where older sister LaLa can (theoretically) keep an eye on them. When Momo chooses to "supplement" Rito's connection with LaLa with some "sisterly love," you can bet LaLa won't spend any time separating harems. Unfortunately, it's also around that time when Yami, the Golden Darkness, appears on the scene with all the subtlety of a supernova, bringing with her a slew of new characters.