Sugiura Natsuki who joins Otaku circle of a certain university. There was only one girl Mizuki Kaoruko in the circle.

There is no make-up mind, typical Otaku girl who put on Lolita clothes for the time being. Natsuki is mutually spoken properly for synchronization, it happily becomes and it inadvertently has sex on impulse. From it, it became a relation like the lover somehow.

However, Kaoruko who obtained saying status "have a boyfriend" and felt generous, it comes to get the attitude a little carried away in the university, a surrounding girl is antagonized. And, the Otaku circle that must be my territory is invaded.

The action that Kaoruko who had thought whereabouts for me to be deprived got, it was to become true "princess" of the Otaku circle which pampered she only.