A group of people go to a summer house for a vacation, unaware of the perils they will undergo during their stay. A school doctor who accompanies them plans on blackmailing one of the women in the group as he got hold of her diary. Relationships are blurry and chaos starts when one of them dies. Escaped convicts have entered the vicinity and have destroyed the main bridge, rendering these people unable to escape. Now trapped and scared, what are they going to do?

Risa runs away from her home, and her uncle's house is the only place she can go to. The uncle has been lonely for a long time, and can't help but notice how much his niece has developed...

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?

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