12 Anime Where MC Gets a Massive Glow-Up

Last updated October 16, 2024
Written by:
Ipsita Kabiraj
Evanshi Mavani
Ipsita Kabiraj ,
Streaming Editor
Evanshi Mavani
Anime Guide & Listicle Writer

A good story in anime is necessary, of course, but let’s be honest: cool-looking main characters are just as important in attracting viewers. However, not every character is simply graced with attractive looks from the get-go. This is why glow-up anime turns out to be an interesting watch.

Whether it's because of a lack of confidence or simply puberty at play, some anime characters get their long-due glow-ups throughout the series. This is especially the case in series with multiple seasons, where the viewers actually get a chance to see their favorite characters go from looking wimpy to being young adults ready to take on the world. And for fans, it is incredibly satisfying to witness that moment. 

While there’s no shortage of anime with this particular theme, some glow-ups are more memorable than others. The main characters in these ten anime go through dramatic transformations for the better. So, with that said, let’s dive right in!

12. Koby (One Piece)

Koby - 'One Piece'
Anime One Piece
Release Date Oct. 20, 1999
Number of Seasons 20
Number of Episodes 1122 (ongoing)
Watch Here Crunchyroll, Prime Video, Netflix, Hulu

When we first see Koby, he is a timid young adolescent who is being bullied by Alvida's crew. Following his rescue by Luffy and his declaration of aspiring to become a prosperous Marine, he chooses to separate from Luffy so that he can undergo training with the Marines and work to achieve his goals.

Under Vice Admiral Garp's guidance, Koby undergoes relentless training that transforms his physique and attitude. He has a major glow-up as he progresses from being a shy person to a confident and assertive leader.

11. Masamune Makabe (Masamune-kun no Revenge)

Masamune-kun no Revenge
Anime Masamune-kun no Revenge
Release Date Jan. 5, 2017
Number of Seasons 2
Number of Episodes 24+OVA
Watch Here Crunchyroll, Prime Video

As the name suggests, Masamune-kun no Revenge centers on Masamune Makabe’s glow-up and revenge. After Aki Adagaki humiliates him in public following his confession, Masamune vows to transform and take his revenge.

His plan? Losing weight, dressing fashionably, changing his whole look in the hopes of making Aki fall for him, and then dumping her. While Masamune does get a brilliant glow-up, his revenge against the girl who called him Piggy would not be as easy as he thought.

Despite the slightly cliche plot, the anime actually focuses on the difficulties that come with losing weight and bettering one’s health. Masamune-kun no Revenge is hugely entertaining and will surely thrill viewers who enjoy the ugly-duckling-to-graceful-swan plotline in anime.

10. Kaneki Ken (Tokyo Ghoul)

tokyo ghoul
Anime Tokyo Ghoul
Release Date July 3, 2014
Number of Seasons 3+OVA
Number of Episodes 48+2 OVA
Watch Here Crunchyroll, Prime Video, Hulu

Tokyo Ghoul has been one of the more hyped-up anime in the community due to its very popular manga created by Sui Ishida. The premise itself is easy to follow. The world is inhabited by humans and ghouls who eat people as a source of food. After being turned into a half-ghoul-half-human hybrid, the main character, Kaneki Ken, tries to figure out his identity while desperately trying to survive the harsh world of humans and ghouls.

There's still much debate about whether Ken Kaneki's transformation can be called a glow-up, but it is undoubtedly astonishing. After being horrifyingly tortured, Kaneki finally breaks, and his hair changes from black to white. This is believed to have happened due to Marie Antoinette syndrome, a rare condition that causes the hair to become white in response to great stress or shock.

However, this is not the only transformation Kaneki goes through. His subsequent “glow-ups” also consist of growing physically stronger after embracing his ghoul side and taking on a part black part white hair color.

Kaneki goes from being a wimpy nerd initially to a strikingly handsome edge lord, and all it takes is a date with a ghoul.

9. Alvida (One Piece)

One Piece
Anime One Piece
Release Date Oct. 20, 1999
Number of Seasons 20
Number of Episodes 1122 (ongoing)
Watch Here Crunchyroll, Prime Video, Netflix, Hulu

Alvida is a tall, obese woman and the captain of the Alvida Pirates. She is depicted as vain and arrogant, considering herself the most beautiful woman at sea, regardless of her appearance.

When she consumes the Slip Slip Fruit, it causes everything to slide off her body, including a significant portion of her body weight. This causes her to undergo a massive transformation, becoming slender and as beautiful on the outside as she always thought of herself.

8. Eren Yeager (Attack on Titan)

Eren Jaeger
Anime Attack on Titan
Release Date April 7, 2013
Number of Seasons 4+OADs
Number of Episodes 91+8 OADs
Watch Here Crunchyroll, Prime Video, Hulu

This list would have been incomplete without mentioning Eren Yeager from Attack on Titan, even though the “glow-up” only extends to his looks and power. One hundred years before the start of the anime, humanity has been on the bridge of extinction due to monstrous humanoids called Titans that devour humans. These giants are terrifying because their taste for human flesh is not born out of hunger but pleasure.

Now, in the present, the remaining small population of humanity lives confined within three “heavenly” walls, resulting in 100 years without a single titan encounter. However, that calm is soon broken when a titan manages to breach the outer wall and initiates a massacre.

During this tragedy, our main character, Eren Yeager, witnesses his mother’s horrific death and vows to exterminate all Titans one day. To do so, he enlists in the Survey Corps, an elite military unit that combats the Titans outside the protection of the walls. Along with his adopted sister Mikasa Ackerman and his childhood friend Armin Arlert, they join the brutal war against the Titans and race to discover a way of defeating them before the last walls are breached.

After finding the basement and unlocking his father's memories, Eren learns the truth about the Titans and the history between Eldia and Marley. Now vowing to destroy his true enemies, Eren has a complete personality change, which extends to his looks. With gloomy eyes, long hair, and hints of a mustache, Eren grows up to become a cynical powerhouse who just might take over the world.

7. Izumi Miyamura (Horimiya)

Horimiya
Anime Horimiya
Release Date Jan. 10, 2021
Number of Seasons 2
Number of Episodes 26
Watch Here Crunchyroll, Prime Video, Hulu

Horimiya follows Kyouko Hori and Izumi Miyamura, both of whom hide who they truly are at their high school. Hori is seen as the typical popular student who is the perfect combination of beauty and brains by her classmates. In contrast, Miyamura is viewed as a meek and distant classmate. However, nothing could be further from the truth.

Due to a coincidental meetup between the two, Hori and Miyamura see the true and bare selves of each other. Though Hori may seem like the popular and outgoing girl at school, she has little time to socialize due to household work piling up on her. On the other hand, Miyamura is actually a daring and bright person who hides his piercings and tattoos from his fellow classmates.

Despite having opposing personalities, they become friends quickly and often spend their time together at Hori’s house. As Miyamura and Kyouko slowly open up to each other, their friendship starts to evolve into something else entirely!

Miyamura’s transformation from a nerdy middle schooler to a confident young adult with piercings can definitely be considered a glow-up.

6. Kae Serinuma (Kiss Him, Not Me)

Kiss Him Not Me
Anime Kiss Him, Not Me
Release Date Oct. 6, 2016
Number of Seasons 1
Number of Episodes 12
Watch Here Crunchyroll, Prime Video

As a "fujoshi," Kae Serinuma loves to indulge in wild fantasies when she sees boys getting along. After watching the death of her favorite anime character, she loses a lot of weight and transforms into a petite beauty. As a result, four popular guys from her school ask her out, a dream situation for everyone except Kae, since she would instead prefer they go out with each other!

Kiss Him Not Me begins with Kae Serinuma, who is fat, has tiny eyes and dull hair, and wears unflattering glasses and clothes. After her transformation over the course of a week, she becomes thin, dresses differently, and her eyes appear luminous and beautiful. While no one said extreme makeovers had to make sense, this one goes over the top for sure.

5. Simon (Gurren Lagann)

Gurenn Lagann
Anime Gurren Lagann
Release Date April 1, 2007
Number of Seasons 1
Number of Episodes 27
Watch Here Crunchyroll, Prime Video, Hulu

Simon and Kamina were raised in a secret underground village, hidden from the world's attention as children. One day, Simon discovers a curious object while excavating the earth, which turns out to be the ignition key of an ancient instrument of war that the pair named Lagann.

Together, Simon and Kamina use their new weapon to defend themselves against an assault from above, aided by Yoko Littner, a fiery redhead with a huge pistol who traverses the world above. The sky is now in plain view, and Simon and Kamina set off on a journey alongside Yoko to explore the wastelands of the surface.

At 14, Simon was 5 feet tall and looked like a child compared to the guys around him. He had a shy personality with a weak constitution and relied on the people around him to fight. However, by the end of the series, Simon had a growth spurt, became confident, and became a handsome young man. Simon is basically the epitome of what every short kid wanted to become once they grew older.

4. Asta (Black Clover)

Black Clover
Anime Black Clover
Release Date Oct. 3, 2017
Number of Seasons 4
Number of Episodes 170
Watch Here Crunchyroll, Netflix, Hulu, Prime Video

Black Clover is one of the most popular anime in recent years, and undoubtedly, its characters are one of the reasons why.

Asta and Yuno are both discovered abandoned in a cathedral and are raised up as brothers in an orphanage. However, in this universe where magic is everything, Asta lacks magical abilities, whereas Yuno has them in abundance. At the age of 15, Yuno receives a four-leaf Grimoire, while Asta receives a five-leaf Grimoire that allows him to use anti-magic. Despite being opposites in their talents and blessings, Asta and Yuno form a healthy rivalry and aim to become the Wizard King.

While Asta has always been toned from the beginning, his appearance becomes more defined as time passes. With him mastering the anti-magic power, his muscles have been struggling to remain hidden, thus resulting in Asta’s Captain America glow-up.

3. Shinichi Izumi (Parasyte)

Anime Parasyte
Release Date Oct. 9, 2014
Number of Seasons 1
Number of Episodes 24
Watch Here Crunchyroll, Hulu, Prime Video, The Roku Channel

With parasitic aliens arriving on Earth and infiltrating humankind by burrowing into their brains, it's no wonder that Shinichi Izumi, a sixteen-year-old high school student, falls victim. However, the parasite fails to control his brain and ends up in his right hand. Because it cannot migrate, the parasite, now known as Migi, must rely on Shinichi to survive. As a result, both are forced to cohabit and must defend themselves from hostile parasites.

Shinichi Izumi begins as an average teenager who, frankly, looks a little dull-witted. However, after being infected by a parasite, his appearance makes a drastic change for the better. Izumi becomes stronger, his muscles develop, and he grows to become far more confident. The alteration of Shinichi's cells due to the invading force results in the man's glow-up.

2. Naruto (Naruto)

Naruto
Anime Naruto (original series)
Release Date Oct. 3, 2002
Number of Seasons 9
Number of Episodes 220
Watch Here Crunchyroll, Netflix, Hulu, Prime Video

Naruto was 12 years old when the anime first aired and dreamed of becoming the Hokage and gaining the villagers' approval. Despite being looked down on due to his possession of the Nine-Tailed Fox Demon, Naruto worked stupidly hard to gain acknowledgment. In the beginning, Naruto was of average height compared to boys his age and wasn’t really taken seriously. Yes, he worked hard and inspired countless people, but the word “cool” was more so associated with his team member - Sasuke Uchiha.

After Naruto went on a three-year journey to train under Jiraiya, he returned with a significant glow-up. He came back more mature and stronger, with a toned body and confidence oozing out of every cell of his body.

1. Yuri Katsuki (Yuri!!! on ICE)

Yuri!!! on ICE
Anime Yuri!!! on ICE
Release Date Oct. 6, 2016
Number of Seasons 1
Number of Episodes 12
Watch Here Crunchyroll, Prime Video,

In the Figure Skating Grand Prix, Yuri Katsuki carried the hope of all Japan on his shoulders, but he was crushed in the finals. He returned to his hometown in Kyushu, half wanting to skate and half wanting to retire. That's when five-time world champion Victor Nikiforov appeared and decided to coach Yuri for the Grand Prix.

After losing horribly in the international skating competition, Yuri stops exercising and starts binge eating. As a result, his formerly athletic body is nowhere to be found, and all that can be seen is fat. However, with Victor's arrival, Yuri emerges from his depressed state of mind and starts exercising once again. With a goal in mind, Yuri gets a glow-up as his body and personality change for the better. It seems that love and passion can truly change a man in marvelous ways.



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