Hiroaki is an almighty otaku, well versed in everything from anime and manga to games and special effects, and is called ‘sensei‘ by his online friends. One day, they gathered together for an off-kai and he was surprised that most of them were cute little girls! Even though he is good at taking care of others, he doesn’t do so well with girls. But they all adore him and drag him from one otaku shop to another. Will he be able to satisfy their otaku and ero curiosities?