Moonfish

Moonfish (ムーンフィッシュ) is a villain affiliated with the League of Villains and also part of its Vanguard Action Squad. He and the rest of his team serve as the main antagonists of the School Trip Arc.

Appearance
Moonfish is a fairly tall man, who's entire body is covered in a BDSM-fashioned black leather overall that somewhat resembles a straight jacket that only reveals his mouth. His body is bound by several leather belts with spikes on them and they are all over his body, with five belts notably holding his mouth wide open so that his teeth are completely visible.

Personality
Moonfish is a very disturbing individual, who gains a perverse sense of pleasure from seeing dismembered body parts. During battles he's longing for flesh, begging his enemies to provide him with more.

History
Nothing is known about Moonfish's past save that he is an escaped death row inmate.

School Trip Arc
Moonfish, Spinner, and Kenji Hikiishi meet up with the other members of their team on the cliff side overlooking the Yuuei training camp, with the bound man mumbling about their job. After splitting up from the others, Moonfish encounters Mezou Shouji and Fumikage Tokoyami and attacks them. As a result of this sneak attack, the bound man cuts one of Mezou's arms off, although the two manage to escape him ultimately. Left alone with the severed appendage, Moonfish admires it, while also murmuring to himself about getting back to the job at hand. He is approached from behind by Katsuki Bakugou and Shouto Todoroki, and stands up, dropping Mezou's limb to the forest floor. He turns to the two heroes-to-be, affirming his need to get back to work. He then activates his Quirk.

Moonfish attacks Katsuki and Shouto, forcing them on the defensive. Suspended off the ground via his Quirk, the villain bemoans having to endure this situation, telling himself once again to do the job. He then attacks Katsuki once more, splitting his tooth blade in an attempt to catch the youth off-guard. Almost immediately he is attacked by Shouto, but manages to avoid the Yuuei student's ice by quickly anchoring himself to the top of one of the surrounding trees with his Quirk. He then hangs upside down in the air, asking his adversaries to show him flesh.

Moonfish attacks Shouto next, managing to inflict a wound on the youth's right leg. Now suspended between two trees, the bound villain continues his onslaught, leaving his opponents no room to counterattack. Moonfish then hears the sounds of Izuku Midoriya and Mezou Shouji crashing through the forest, with an out of control Fumikage Tokoyami chasing after them. Distracted from his initial targets, Moonfish sends one of his tooth blades at the new arrivals, only for Fumikage's Dark Shadow to flatten him into the ground, shattering his teeth.

However, Moonfish quickly gets back up using his teeth and is enraged at Fumikage, saying that he cannot forgive him for trying to steal his prizes. He attacks the shadow-using student, stabbing through the shadow arm that has grabbed him and its head. This has no effect on the creature, however, and it extends its arm through the forest, smashing the villain through multiple trees before throwing him forcefully into another group of them, incapacitating the bound villain.

Later, after the rest of the Vanguard Action Squad succeeded in fulfilling their mission, they left the defeated members of their group behind. Still unconscious, Moonfish is arrested by the Police Force.

Quirk and Abilities
Unnamed Quirk: Moonfish's Quirk gives him the ability to enlarge, grow and manipulate his teeth. Moonfish's teeth are quite strong as they were able to break through Shouto Todoroki's ice. Moonfish also uses his Quirk to maneuver around.

Quotes

 * (To himself, about Mezou Shouji's severed arm) "Pretty. So pretty. No. This is work. So alluring. But no. Can't...Pretty flesh. Gah! So enticing though...Gotta do the job."


 * (To Fumikage Tokoyami) ''"Fleshhh...no good. Flesh. Need flesh...No good. No good. Can't forgive you. I'll be the one to see those boys' innards!!! Do not snatch my prizes!!