The light novel is the official prequel to the anime series. It tells the story of how Yuri and Hinata meet, how they find out about "Angel" and the other characters and how the SSS was founded.

A mysterious creature has fallen from the sky and landed right at young Yuina's feet! Branded as the master of this new angelic being, Yuina is forced into an otherworldly pact, one that will take her beyond...

The five-year-old Lotti and six-year-old Johnny made the pledge that they would enroll to the Royal Music Academy together when they grew older. Sadly, the two were soon separated as their nation was divided...

A chance meeting between a famous idol and an ordinary girl on a snowy surreal day sets the stage for this manga. Depressed and hopeless, Kurashiki Yuya meets Mayu, whose carefree and live-for-the-moment att...

Mihail Meyer (nicknamed "Michel" by his wife) is a half-Japanese doctor. While on the way home with his wife late one night, he nearly runs over a 6-year-old boy playing in the street. Alex is a precocious b...

"I have something I don't want to lose. So much so that these terrible feelings have grown." A pianist who attempted suicide 3 times, Juri, is taken to help her aunt at a prison where murderers who killed in...