A wonderful tale of a boy falling in love with his tapeworm.

In a future where a pandemic wipes out most of mankind, Raito is tasked to travel back to the past in order for humans to avert that destiny. His mission: to make sure a normal high school freshman Yuu Tanak...

Yuuichi Tate is overjoyed: He gets to go to a brand new high school. Of course, then he just happens to find out the school he choose is under frequent attack by strange creatures called ''Orphans'', and the...