Bokura ga Koko ni Iru Fushigi.
Could be interesting
Selene, who used to be a rather lewd girl, is trying her best to get her life together after a bad breakup. However, everything gets turned upside down when a pair of mischievous demons (a succubus and an incubus), pretending to be humans, move in next door to her. The two twins end up taking it upon themselves to "show her the error of her ways" by putting her in various unfortunate situations.
Sena’s master has yet to return home, but another mysterious guest has appeared at her front doorstep. Supposedly hailing from the Iron Cliffs, Ladon is an ambassador of dragonkind, a species that has long thought to be little more than a myth. Ladon intially desires to speak with Sena’s master, but due to The Master’s absence, she chooses to wait for her at the manor instead. The two of them gradually grow closer as they spend time together, eventually desiring each other’s company in a far more intimate way.
Touya started to live with four tutors during the summer holiday. His father has gone abroad for business and his life has become a paradise with four beautiful women. Erotic lessons by four teachers have begun!!!
