OVAs of Seitokai Yakuindomo* which were either bundled with the limited editions of the manga volumes or as standalone OVAs.

765 Production Studio manages the unique talents of 13 professional idols as they slowly make their way to the top and become country-wide celebrities. But the girls' journey is far from just fun and games: hard work, sweat, and tears are some of the prerequisites needed to flourish in this industry—and for 765 Pro in particular, a watchful eye out for their rival, the infamous 961 Production. As the girls' fame grows, however, their time together as a family diminishes, and now the very popularity they sought is threatening to tear them apart. A difficult balance of work and bonding must be achieved, or they risk everyone going their separate ways. The personal and professional ordeals of these idols can't be conquered alone, but with each other's loving support, any obstacle or hardship can be overcome! [Written by MAL Rewrite]

The heroine is a normal girl, until one day she is invited to another world and becomes the princess of the dream world, where people use dreams as the energy to live. One day, the dream world is being attacked by something called "yumekui" ("dream eater"), and many princes are being attacked by it. The heroine must wake them up to save the dream world, as the princes are unable to wake up due to having their dreams stolen.

In this world, angels, demons, and other supernatural beings peacefully coexist with humans. Neil Bowman is a demon who is unlike most; he is mesmerized with human culture, and no matter how hard he tries, he can't do anything evil. Thus, he runs away from Hell and up to Earth. Neil moves in with his online friend and vampire, Ira Blood, along with Ira's many roommates. Despite coming to Earth to meet humans, Neil discovers that not a single one of his new roommates is actually human. Along with Ira, there's Lynn Angel, the stern angel landlord; Lynn's little sister, Lily, who falls from Heaven; Abu, a mummy who never speaks; and Vladimir Eliot Kirilenko, a werewolf tasked with monitoring Neil. What most of them don't realize—not even Neil himself—is that Neil possesses the powers of the Demon King. What effect will this have on the residents of Apartment 1031 on All Saints Street?