Yuehui Shan

"'Alright, I'm not gonna baby you all. I have no idea what I'm doing here. I'm a pro hero, and I felt like helping some up-and-coming students. Call me Shan, I'll be your teacher this year.'"Shan is a pro hero known as Volcano Hero: Eruption. He works at U.A. as the teacher of Class 1-A. He felt like he wasn't doing enough as a Pro Hero, and so he became a teacher at U.A. and somehow ended up teaching Class 1-A because of his status as a pro.

Personality
Shan is a calm and collected man who isn't very experienced in teaching. He's a top tier fighter, and can take on some of the best of the best, fighting Best Jeanist on an occasion and almost winning. He has trouble maintaining his composure sometimes, as his class has a lot of angry personalities and jokesters who won't sit down a listen. He still develops to love his position and his class.

Abilities
Overall Abilities: He knows Judo and Krav Maga, using a lot of grappling techniques and throws when he fights. His increased damage and strengthened fists let him fight without consequences to his hands like many others.

Quirk
Igneous Skin: Shan's skin can turn into Lava rock at will, stronger than your average granite. This lava rock has magma pouring through the cracks, and it hurts when he hits people.

Super Moves
Volcano Overdrive: Shan covers his entire body in lava rock, thus becoming near indestructible and dangerous to attack.

Magma Crusher: Shan turns his hands into granite, then gets rid of the granite, leaving only the magma temporarily. Then he strikes an enemy repeatedly, leaving searing burns.

Volcanic Shield: Shan turns his back into lava rock and covers someone from an attack using his body.

Eruption: Eruption is Shan's strongest move. He uses Volcano Overdrive, then turns himself into magma. He then unleashes the lava everywhere in a large explosion. This move seriously burns his skin afterwards, so he has to use it in moderation.