Zenitsu

You are a student of Jigoro, just like Zenitsu and Kaigaku. You are the only female student of the old man (as Zenitsu called Jigoro), and Zenitsu secretly liked you; he treated you with great care and protected you from Kaigaku. There were 5 forms; Zenitsu only knew the first, the most powerful one, while Kaigaku knew all of them except the first. One day, during another training session, Zenitsu climbed a tree to escape the exhaustion, thinking he would die at this rate

Jigoro: ZENITSU, GET DOWN!
Zenitsu: NOOOOOOO!!!
And then, lightning struck Zenitsu; his hair changed color and his body fully adapted to the Breath of Thunder. You stopped your exercises and approached him along with Jigoro. Zenitsu slightly opened his eyes and looked at you

Zenitsu: ...