Tsuyu Asui

Everything about her reads as amphibian without quite tipping over into it: a broad mouth that dips at its center, wide oval eyes carrying large black irises above heavy lower lashes, and unusually big hands on a small, slender build. Among the Asuis her frog traits are actually the mildest, though her habits give her away, since she hops on all fours rather than running and settles into postures that suggest a frog at rest.

Sea-green hair reaches her hips and is gathered at the tips into a wide bow made of the hair itself, with two long clumps framing her face and bangs parted between her eyes. Salty Banks Middle School put her in a white sailor top with a navy collar and skirt; U.A. issues the standard gray-jacketed uniform for the girls.

Her first costume is a green turtleneck bodysuit with beige gloves buckled at the wrists, belts above the chest and at the waist, black lines outlined in yellow down the front, and webbed flippers on her feet. Goggles with dark green lenses sit at a matching headband, and a slim mask crosses her face. The winter build adds a neck ring carrying two yellow inflated-cheek muffs that hold her temperature steady, since cold sends her into hibernation, plus lining insulation and a visor; ring and mask both came off during the Final War.

She is taller eight years on, in a costume blending both earlier versions: a green visor, goggles and belts and gloves in orange and tan, indigo circles capping the wrist guards, pared-back markings with a tan patch at the stomach like a frog's underbelly, and indigo where the yellow used to be. Off duty she keeps the bow in, undoing it only when she suits up.

She says what she thinks with no cushioning, which reads as aloof but is simply directness. Friends may call her Tsu; nobody else gets the privilege, and she attaches the honorific -chan to almost everyone save her teachers.

With both parents working constantly, she raised her younger brother and sister from an early age, and the responsibility built someone who juggles home and school without either slipping. It also taught her to steer people and settle them. Her principles are firm enough that she will stand against her own friends to stop something reckless, as when much of Class 1-A resolved to go after the kidnapped Katsuki Bakugo and she argued hardest that acting on feeling and breaking the law would put them on the villains' level.

Pressure barely moves her. An honor student going back to middle school, she judges situations well and rarely lets emotion steer, which makes her the ally who covers a partner's blind spots; Recovery Girl called her the perfect pillar of emotional support. The composure is not absolute, and despair has broken through it more than once. Her bluntness cuts, too: after Katsuki was recovered she was so ashamed of what she had said that she avoided her classmates until Ochaco Uraraka drew her back.

A blank stare is her resting expression, which makes her opaque and occasionally unnerving. She taps a finger against her mouth while thinking, and punctuates sentences with a ribbit. The Final War softened her rigidity. She told Himiko Toga that she had once believed rules alone divided heroes from villains, then asked her to hear Ochaco out, acknowledging that reaching a person is far harder than capturing or killing one.

Frog hands her a frog's biology and with it agility, enormous leaping power, and legs that kick hard. Her tongue extends up to twenty meters and lifts a full human body, serving as whip or grapple. She sticks to walls, camouflages, empties and rinses her stomach, and secretes mucus tuned to itch, mask scent, or paralyze. Prolonged cold shuts her down into hibernation. Water is her element, where her anatomy costs her nothing in speed or strength, making her pivotal on rescues and underwater fights. She trained every muscle she has, tongue included, by anchoring it atop a cliff while climbing the face.

Nejire Hado, third of U.A.'s Big 3, put her and Ochaco forward to intern under Ryukyu. The Ryukyu Squad met Rikiya Katsukame first at the Shie Hassaikai Raid and brought him down, and even after a Trigger-boosted Rikiya siphoned her stamina she held out twenty minutes until the drug wore off. In the Joint Training Battle she could not match Jurota Shishida's boosted strength, but she shattered Hiryu Rin's scale armor with her legs, threw him into Jurota while Hitoshi Shinso had the latter under control, and closed out the win. She props up even Tenya Ida, Fumikage Tokoyami, Shoto Todoroki, and Izuku Midoriya, which puts her among the strongest girls in her year.

Her mind is the other half of the package. She placed sixth on the mid-terms and worked out at the U.S.J. that Izuku's power resembled All Might's and that the League must have a means of killing him, which the Nomu confirmed. She got Izuku and Minoru Mineta clear of the Flood Zone, salvaged the Ectoplasm exam by having Fumikage send Dark Shadow in to cuff the instructor unnoticed, and beat Jurota's nose by coating Denki Kaminari and Hitoshi in mucus so all three smelled identical. Her named moves are Camouflage, Meteor Fafrotskies alongside Ochaco, and Froppy Hopper.