Baka to Test to Shoukanjuu Wiki
Baka to Test to Shoukanjuu Wiki
Aiko Kudou
Kanji 工藤 愛子
Romaji Kudou Aiko
Character Information
Birthdate December 4
Age 16-17
Gender Female
Height 5'2
Weight 46 kg (101 lbs)
Eyes Hazel
Hair Light Green
Status Alive
Family N/A
Class Rank Class 2-A
Position Top 10
Suit Sailor (School Uniform)
Equipment Battle Axe
Light Novel Debut Volume 1
Anime Debut Episode 1-2
Manga Debut Volume 2
Seiyuu Yoshino Nanjou
Voice Actor Trina Nishimura
Aiko Kudou/Relationships
Aiko Kudou/Image Gallery

Aiko Kudou (工藤 愛子 Kudō Aiko) is a supporting character in the Baka to Test to Shoukanjuu series, shown more often in the second season. She is a student in Class 2-A [1] at Fumizuki Academy who is one of the Top 10 students in her year.


Aiko has light green hair that is in a short, spiky fashion (Artists typically give bolder, sportier females this style hair), hazel eyes and her chest seems small, but her breasts tend to look bigger at the baths.


Aiko is portrayed as a green-haired, friendly, easy-going and mischievous girl. She uses 'boku' (僕), the word for "I" commonly used by boys or young men, to address herself. She especially likes to mess around with Akihisa Yoshii and Kouta Tsuchiya, often stating perverted things to arouse them and causing them to nosebleed. It is highly implied that she likes Kouta, which is supported in S2 EP1 while trying to get him to look at her bathing suit.[2][3] She states that she learns PD/H/PE "practically",[4] unlike Kouta who sits and takes notes. She is the only main female character who does not intentionally harm any male characters.


Aiko is extremely skilled in electronic gadgets and carries a micro-recorder for recording lessons, which she also uses to cause mischief to other people by recording, cutting and rejoining parts of their conversations, creating lots of misunderstandings and woes to others, especially towards Akihisa Yoshii.


Her Shoukanjuu is clad in a schoolgirl sailor uniform and wields a battle axe. It carries an accessory that increases the electric strength of her axe.

The Occult version is Noppera-bou.[5] As Yuuji implied, "if she doesn't have a face, maybe she doesn't want others seeing her real self.”


  • The name Aiko means "love, affection" (愛) (ai) and "child" (子) (ko).
  • Aiko's surname Kudou means "(factory) worker" (工) (ku) and "wisteria" (藤) ().


  • In the light novel [6], Aiko said that she transferred to Fumizuki Academy on the end of last semester in first year.
  • Aiko stands at a decent height, being taller than Mizuki Himeji and about the same height as Minami Shimada.
  • Aiko and Kouta Tsuchiya's simulated son inherited Aiko's looks and hairstyle while his eyes were from Kouta [7]. The son turned out to be a serious kid and recited the Analects (One of the four books of Confucianism).
    • Even after the seriousness it became, the kid still indulges in erotism.
  • Hideyoshi's summon, in future form, stated that in the future, Aiko is working hard to be a premier talent as a doctor though it was only a simple simulation of the summoner's future [8].


  1. Baka to Test to Shoukanjuu Anime: Episode 1-2
  2. Baka to Test to Shoukanjuu Anime: Season 2
  3. Baka to Test to Shoukanjuu Manga: Volume 5
  4. Baka to Test to Shoukanjuu Anime: Episode 1-2
  5. Noppera-bou on Wikipedia
  6. Baka to Test to Shoukanjuu Light Novels:Volume 1: The Ninth Question
  7. Baka to Test to Shoukanjuu Light Novels:Volume 9.5: Me and Kids and Summoned Beasts
  8. Baka to Test to Shoukanjuu Light Novels:Volume 10.5: Me, and the Future, and Summoned Beasts!


v · t · e Class 2-A
Homeroom Teacher Youko Takahashi
Class Representative Shouko Kirishima
Class Ambassador Yuuko Kinoshita
Known Members Aiko KudouMiho SatouShouko KirishimaToshimitsu KuboYuuko Kinoshita