Part 1

It's been a year after the defeat Satan.
Rin hasn't exploded into his blue flames since then, and his cram school classmates have almost forgotten of his and Yukio's lineage.
But after finding out blue flames have been reported on campus, Rin is as close to exploding as before.
Then, the next day of school, a new girl shows up.
Could she be connected to this blue fire sightings? Rin wants to find out, and Yukio is suspicious that it probably goes far more dangerous than they thought...