The Hanabishi family and Hidaka family are next door neighbors. The fathers of both households could be called best friends, so they all get along like one big happy family. In particular, Hidaka family’s only son Kouki was raised lovingly by the four Hanabishi sisters like he was their own brother. One day, the Hanabishi and Hidaka parents were preparing for a long term overseas business trip together. Kouki ended up living together with the four sisters. And one of them is promised to him as a fiance. But who should he choose?

During the feudal era war develops on several kingdoms and territories, and Ryuuto leads one of the sides until one day his political enemies decide to set up a trap and send him to hunt a demon – which turns out to be a succubus known for killing several men already. The succubus falls in love with him – or at least with his lower part and energy – and decides to help him succeed in his military quest.

A mansion with a young owner, turns to be just the face of an occult practice on this world. Young ladies are trained to serve well the desires of the man who can pay for it. Brutality and torture are just normal things to this family. Also debts from womans can be paid with just a single word of acceptance to render their bodies to the most barbaric practices. But in the end the excess can have a high cost.

In Akihabara in the near future in 2037, the only income resource of the yakuza is electricity. Matsuyama, leader of the Kanto Cyber Imaginary Number Group, plans to light up a gigantic adult entertainment building with excess electricity in order to take over the land owned by the rival Nakahara-gumi. But its leader, Nakahara, has a reason to refuse it. His beloved Arika suffers from a rare disease where her body spasms to neon light - fatal if untreated. Source: Geta

* Based on the erotic game by Orcsoft. Ever since Ayako's husband died, Akito took it upon himself to guard her as his cousin. However, he suddenly realized that this situation can lead to something even more intimate... Will his virginity be in trouble?