The story is about a man whose compulsive tendencies make it impossible for him to keep a job, and a young girl who skips school... more>> and loves insects. The two meet, come to support each other in reintegrating into society, and fall in love. There’s a problem, however: namely, the parasites in their heads. <<less

Just the extraordinarily unfortunate life of a high school boy... but misfortune isn't all that's extraordinary about him.

From the perspective of an alien planet with super-advanced technology and tiny (1/60th the size of a human) inhabitants, planet Earth was the perfect location... more>> to banish their worst criminals. Five of said criminals were sent to the planet to be exiled, attached to little critters like frogs and rabbits so they can never be fully active. Due to an accident, these five criminals managed to escape and attach themselves to five different girls that were nearby. The one responsible for the banishment of these five criminals now must detach them from the girls by mouth-to-mouth release. <<less

The astronomical event "Apple Moon" occurs once every 300 years. On that day, Sakuma, while visiting the ocean with his classmate to observe the event,... more>> ends up meeting a parasitic alien instead...? <<less

Isamu doesn't stand out, and everyone calls him a "side character" behind his back. Even his passion for running doesn't get him anywhere on the... more>> track team, so he spends his nights languishing at a low-paying part-time job. It feels like everything he's holding in is going to boil over, but when people start getting infected with a mysterious illness that turns them into monsters when sexually aroused, he will have to learn how to control the urges he has pent up inside in order to survive. <<less

The day of his mother's funeral was in the early summer when he turned 17. That was the same day he met Yashiro Kyouko. During... more>> the days he felt restless, she was the one who supported him. As long as she was there, then he could continue to live. In the peak of summer, the boy was taken away to "paradise." <<less

At the beginning of the 21st century a sudden increase in genetic mutations cause some people to be born with special abilities. However, these enhanced humans are not welcome amongst the general population. As time goes by, they are marked for exile and shunned by society, resulting in a life of crime for many. As their special powers make them difficult to apprehend, the government joins hands with an unofficial, secret group of bounty hunters known as Peigenz. The Peigenz organization is filled with the most gifted and highly trained mutated individuals.... more>>

Jay Berell, the heroine of the series, is a normal high school student. During a battle between Peigenz and a dangerous serial killer, Jay find herself caught in the crossfire. This triggers her special mutant abilities and leads to her recruitment into the Peigenz organization. <<less