A Western-style building that stands quietly in the mountains, the Black Rose Museum ... Ryohei Takamiya, a university student who will stay there for a week as a tutor, triumphantly visits the museum.

Childhood friends Shin and Michiru follow a mysterious rabbit one afternoon and end up in another world as legendary hentai heroes ! There they undertake a quest to save Lavi, the princess of the

The main character, "Arcy," is a student of an innocent young lady magic school who was sent to an isolated island during the attack on her house . Her magical device, which is a black box,

Rumi goes to save her boyfriend who did not return from the dungeon. On her way there will be many enemies who will try to stop her and ... Can Rumi reach the end or succumb to debauchery, forgetting