Heroes Wiki

-Welcome to the Hero/Protagonist wiki! If you can help us with this wiki please sign up and help us! Thanks! -M-NUva


Heroes Wiki

This Hero was proposed and approved by Heroes Wiki's Pure Good Proposals Thread. Any act of removing this hero from the category without a Removal Proposal shall be considered vandalism (or a "villainous" attempt to demonize said character) and the user will have high chances of being smitten blocked. You cannot make said Removal Proposal without permission of an administrator first.

Heroine Overview

Tsuyu "Tsu" Asui is a supporting protagonist in My Hero Academia. She is a students of Class 1-A and one of Izuku's friends.

She is voiced by Aoi Yūuki in the Japanese version of the anime, and by Monica Rial in the English version of the anime.


Before starting at U.A., Tsuyu's parents had to travel for work often, which gave them little time to raise their children. Tsuyu was left with the responsibilities of raising Samidare and Satsuki, such as making dinner for them. Although it was tough raising her little siblings, Tsuyu still found her life to be wonderful.

Two years ago before starting at U.A., Tsuyu's hero studies at her middle school piled up and she didn't have much free time for herself. Tsuyu's busy schedule, as well as her frog-like appearance, made it difficult for her to make friends. During her time at middle school, there was a student who started stalking her named Habuko Mongoose, who also had difficulty making friends. Habuko often used her Quirk, which paralyzed whoever she looked at for three seconds, on Tsuyu. Despite this, Tsuyu wasn't bothered by Habuko's stalking because she could understand her as they were both lonely.

One day, Tsuyu mustered up the courage and finally asked Habuko to be friends. Habuko was surprised and touched by Tsuyu's kindness, before happily agreeing to be friends with Tsuyu. Eventually, Tsuyu and Habuko graduated from their middle school, but went to different high schools though they kept in contact.

Two years later, the day after U.A.'s semester began, Tsuyu receives a message from Habuko which states that she made new friends at her new high school and next time she will introduce them to her. Even though they ended up going to different high schools, Tsuyu notes that she will always be friends with Habuko. Tsuyu decides that, like Habuko, she will make lots of friends at her new high school as well.


Tsuyu is a short girl with a frog-like appearance. She has straight dark green hair that ties into a bow at its bottom, and her eyes are considerably large, unlike any normal person. She has eyelashes at the bottom of her eyes and a mouth that dips down a bit in the middle. Adding to her frog-like appearance, she has notably large hands.

Her superhero costume consists of a bright green full-body suit, with black stripes and yellow trim. She has two utility belts, one ending above her breasts and one on her waist, which is decorated with green dots along the outside. Tsuyu wears beige gloves with large wrist guards and green buckles. She also wears black, thigh-high flippers with smaller green lines, resembling frog legs. In fact, most of her costume is based on the design of a frog.


Tsuyu is laid-back, but she is also very direct with those around her, willing to tell them exactly what she think about others. Due to her parents being busy at work and often being left to look after her two younger siblings at a young age, she is a very mature and responsible individual who is able to effectively divide her attention between home and school-related duties without letting them interfere with one another. This has also lead her to being an effective pillar of emotional support for others, making them feel safe and at ease if they don't feel so. She seems to be very indifferent when in school, but sometimes she has demonstrated the opposite and is quite perceptive. She is extremely realistic, she cares about her classmates, and remains calm in the face of danger, but reacts violently if someone harms her. She prefers to be called by her nickname "Tsu" as opposed to her real name, although only by her friends.

Despite her supportive nature, Tsuyu can also be rather sensitive due to her always saying what's on her mind, and fearing her words coming off as blunt and hurtful as result. After Bakugo's kidnapping, Tsuyu tries to get her friends to act rationally by saying that they are no better than villains if they go breaking the rules with leaving to save him.

Afterwards however, Tsuyu becomes very upset and saddled with guilt due to being unable to face her classmates again after this, as well as viewing her own behaviour as cowardly. With help from Ochaco Uraraka however, she was able to put things right and talk with everyone again.

Befitting her frog physiology, Tsuyu can often be heard using the word "Ribbit" ("kero" in the Japanese version) at the end of her sentences as well as her replies. Her facial expression is often a calm and vacant stare, making it difficult to read whatever she's thinking.

Powers & Abilities


Frog: Tsuyu's Quirk gives her the physiology of a frog, with her having the attributes of the creature as well as possessing several frog-like abilities. She is able to cling to surfaces, leap very high (and is usually seen leaping as opposed to running) as well as stick out her tongue up to 20 metres which is strong enough to lift a person's whole body weight. Tsuyu is also capable of camouflaging herself to some extent, other abilities include being able to eject her stomach and secrete a mild, itch-inducing toxin.

Since frogs are cold-blooded creatures, Tsuyu is very sensitive to the cold, and can go into a hibernation-like state if over-exposed to cold temperatures.


  • Tsuyu's favourite food is jelly.
  • Her favourite thing is the rainy season.
  • Tsuyu was originally going to be male, however Horikoshi chose to make her a girl due to a lack of female students in Class 1-A at the time. She shares this aspect with Toru Hagakure.
  • After Tsuyu helped Izuku when training with Blackwhip, he named his "Froppy Style" technique after her, where he shoots out a Blackwhip from his mouth like Tsuyu's tongue.

External links


           Boku no Hero Academia Logo.pngHeroes

U.A. High School
Teachers: Ectoplasm | Higari Maijima | Hizashi Yamada | Ken Ishiyama | Nemuri Kayama | Nezu | Ryo Inui | Sekijiro Kan | Shota Aizawa | Thirteen | Toshinori Yagi
Class 1-A: Denki Kaminari | Eijiro Kirishima | Fumikage Tokoyami (Dark Shadow) | Hanta Sero | Izuku Midoriya | Katsuki Bakugo | Koji Koda | Kyoka Jiro | Mashirao Ojiro | Mezo Shoji | Mina Ashido | Minoru Mineta | Momo Yaoyorozu | Ochaco Uraraka | Rikido Sato | Shoto Todoroki | Tenya Ida | Toru Hagakure | Tsuyu Asui | Yuga Aoyama
Class 1-B: Hiryu Rin | Ibara Shiozaki | Itsuka Kendo | Jurota Shishida | Juzo Honenuki | Kinoko Komori | Kojiro Bondo | Kosei Tsubaraba | Manga Fukidashi | Neito Monoma | Nirengeki Shoda | Pony Tsunotori | Reiko Yanagi | Sen Kaibara | Setsuna Tokage | Shihai Kuroiro | Tetsutetsu Tetsutetsu | Togaru Kamakiri | Yosetsu Awase | Yui Kodai
The Big Three: Mirio Togata | Nejire Hado | Tamaki Amajiki
Other Classes: Hitoshi Shinso | Mei Hatsume

Pro Heroes
All Might | Backdraft | Best Jeanist | Bubble Girl | Burnin | Cementoss | Centipeder | Crimson Riot | Crust | Death Arms | Ectoplasm | Edgeshot | Endeavor | Eraser Head | Fat Gum | Fourth Kind | Gang Orca | Gran Torino | Gunhead | Hawks | Ingenium | Kamui Woods | Kesagiriman | Majestic | Manual | Midnight | Mister Blaster | Mirko | Ms. Joke | Mt. Lady | Nana Shimura | Present Mic | Rock Lock | Ryukyu | Star and Stripe | Selkie | Shishido | Sir Nighteye | Sirius | Snatch | Uwabami | Wash | X-Less | Yoroi Musha
Wild, Wild Pussycats: Mandalay | Pixie Bob | Ragdoll | Tiger

Other Schools
Camie Utsushimi | Inasa Yoarashi | Seiji Shishikura | Nagamasa Mora | Yo Shindo | Tatami Nakagame | Itejiro Toteki | Shikkui Makabe

Melissa Shield | David Shield | Katsuma & Mahoro Shimano | Rody Soul

Eri | Kota Izumi | Oboro Shirakumo

One For All Users
Yoichi Shigaraki | Nana Shimura | Toshinori Yagi | Izuku Midoriya

Knuckleduster | Pop☆Step | The Crawler