Fire is a good servant, but a bad master

Synopsis
A group of prisoners are mysteriously burned to death in their cells in the middle of the night. As the only known powerful NEXT with pyrokinesis, Fire Emblem is the only suspect. Agnes Joubert summons Kotetsu and Nathan to the prison to clear Nathan's name. Kotetsu is attacked on his way home, and he and Nathan team up to investigate the mysterious new pyrokinetic NEXT. Meanwhile, Barnaby works an investigation of his own.