Kosuke Shirai

Ataru's close friend and a class troublemaker

Ataru's close friend and classmate at Tomobiki High School. A burly male student with tall stature and pimples on his face as a distinctive feature. He often causes pranks and commotions alongside Ataru and is recognized as a person of note in the class. He has a girlfriend (Holy Stomach), known for her gluttonous appetite. The name is derived from editor Kosuke Shirai.

Quotes

  • “This is a story that'll thin out the oil on the tip of your noses!”
  • “I can't beat the Holy Stomach (Saint Stomack)!”
  • “We're the class problem children!”

Trivia

  • The name derives from Shogakukan's editor-in-charge, Kosuke Shirai.
  • Facial pimples are designed as his most prominent feature.
  • Did not appear in the 1981 anime version but appears in OVAs and the 2022 anime.
  • Shares the name with 'Perm' from the anime 'Lum's Stormtroopers,' easily confused by fans.
  • His girlfriend is called 'Holy Stomach' and holds the nickname for her big appetite.

Alternate names

Kosuke Perm

Tags

Urusei Yatsura Classmate Ataru's Friend Bad Friend Troublemaker Burly Young Man High School Student Pimple Face

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Profile

Species
Human
Gender
Male

Appearance

Overall appearance
A burly high school boy with tall stature. Prominent facial pimples. Typical high school boy appearance but with a strong presence.
Height
Approx. 180cm
Eye color
Brown
Hair color
Black
Distinguishing features
  • Facial pimples
  • Burly physique
  • Tall stature
Iconic items
  • None

Personality and abilities

Core personality
Troublemaker
Detailed personality
Always acts together with Ataru as his best friend, prank-loving, and frequently causes commotions. Regarded by Onsen-Mark (♨ Teacher) as a class troublemaker and bad friend figure. Despite his burly build, he has a cheeky and approachable side, and deep down he's a good guy.
Keywords
  • Close Friend
  • Burly
  • Prankster
  • Noisy
  • Cheeky
  • Bad Friend
Talents
  • Talent for building close friendships
  • Boldness
  • Striking presence
Skills
  • Teamwork with friends
  • Instinct as a troublemaker
  • Action in starting commotions
Motivation
To enjoy school life together with his friendship with Ataru.
Favorite foods
Classmate Miki (Holy Stomach), Gyudon eaten with friends
Hobbies
Pranks, Causing commotions
Disliked situations
Boredom, Being scolded, Isolation

History

Backstory
Belongs to Class 2-4 at Tomobiki High School and is the close friend of protagonist Ataru Moroboshi. One of the class noisemakers, repeatedly causing mischief and pranks, often getting scolded. His facial pimples and burly physique are striking features, but he has good relationships with classmates including Onsen-Mark. His girlfriend Miki is a big eater known as the Holy Stomach. The original name derives from editor Kosuke Shirai, and in the anime version, he is sometimes conflated with the separate friend character 'Perm.' He did not appear in the early 1981 TV anime but appears in OVAs and the 2022 anime version.
Debut date
1986
Work title
Urusei Yatsura
Media type
Manga

Frequently causing class commotions as a problem child

Significant event
Frequently causing class commotions as a problem child
Description
Recognized alongside Ataru as a class troublemaker, often scolded by teachers and classmates.

Appearance in OVA 'Urusei Yatsura: The Obstacle Swimming'

Significant event
Appearance in OVA 'Urusei Yatsura: The Obstacle Swimming'
Description
Did not appear in the 1981 TV anime but appeared in the OVA, increasing exposure in later new works.

Appearance in 2022 TV anime

Significant event
Appearance in 2022 TV anime
Description
Officially appeared in a new TV anime after over 30 years, drawing renewed attention from fans.

Relationships

Ataru Moroboshi

Best friend

Irreplaceable best friend relationship, always committing mischief and fun together.

Megane

Teammate

As part of Lum's Stormtroopers, they sometimes cooperate or clash as bad friends.

Perm

Teammate

Often confused with the anime Stormtrooper character but acts together as bad friends.

Lum's Stormtroopers

Lum's Stormtroopers: unknown

Media appearances

Urusei Yatsura

Manga

Serialization started in 1980s

Urusei Yatsura (2022 version)

Anime / Supporting

2022 TV series

Urusei Yatsura: The Obstacle Swimming

Movie / Supporting

2008 OVA

Pachislot Urusei Yatsura series

Game / Supporting

Various pachinko/pachislot

Voice cast and creators

Kappei Yamaguchi

Voice actor
Kappei Yamaguchi
Language
Japanese
Version or series
Urusei Yatsura: The Obstacle Swimming

Shin'ya Takahashi

Voice actor
Shin'ya Takahashi
Language
Japanese
Version or series
Urusei Yatsura (2022 version)

Rumiko Takahashi

Creator name
Rumiko Takahashi
Role
Original author

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