In the near future, there are certain people who have special abilities due to the artificial DNA, “XNA”, inside them. The government decided that six of these boys and girls were especially dangerous and transferred them to a newly constructed school where they would remain confined until their graduation. However, the conditions to graduate from Rururan Gakuen were kept firmly a secret. After sorting through many clues, it seemed to them that ‘love comedy’ was the answer. What does that mean? Is it accidentally seeing a girl’s panties? Bumping into a girl with a piece of bread in her mouth on the way to school? Eating bento together or having an eccentric imouto? Well, they have all the time in world to figure it out as the day will keep repeating until their graduation.