Reigen was combusting. Soon, there'd be nothing of him left. It was only serendipity they were in a hot spring where the physical symptoms could be easily passed off as heat exhaustion.

"I...see..." Unable to fight or flee or even freeze in front of his student, Reigen's hand shakily rose to rest on Mob's head once more. He cleared his throat. "Given your psychic growth spurt, allow me to test you."