He's always got that stupid grin, and he just does whatever Kashiwagi-senpai tells him to. He's got no independence.

Yu Ishigami, Chapter 109 Page 7

Tsubasa Tanuma



Kanji 田沼 翼
Rōmaji Tanuma Tsubasa
Gender Male
Age 17
Birthday August 25
Eye Color Black
Hair Color Black (Natural Color)

Grey (Dye in the manga)
Brown (Dye in the anime)

Grade Junior (2-B)
Occupation Student
Personal Status
Status Alive
Relative(s) Unnamed Parents

Unnamed Little Sister
Shozo Tanuma (Paternal Grandfather)
Nagisa Kashiwagi (Girlfriend)

Japanese Taku Yashiro
Media Debut
Anime Episode 02
Manga Chapter 06

Tsubasa Tanuma (田沼(たぬま) (つばさ), Tanuma Tsubasa) is a supporting character in the series. He is a student in Shuchi'in highschool who always asks Miyuki Shirogane for advice about love and the boyfriend of Nagisa Kashiwagi.


In his debut appearance, Tsubasa has a straight black short hair and in essence looks bland.

After the summer break, he changed his hairstyle and dyed his hair grey (brown in the anime). He also wears ear piercings to look like a bad boy stereotype (because Nagisa once mentioned that she likes that look).


Tsubasa is a nice and easygoing guy who never gets angry despite being openly badmouthed and is a really kind person. This personality of his is what made Maki fall for him. As the story progresses, he shows his ”unrestrained” side, going as far as to make out with Nagisa in public (even in front of the student council). He's also prone to boasting about his relationship, as seen several times when he visits the Student Council under the pretext of seeking advice but seemingly having no actual problems with Nagisa at the time.


Tsubasa debuts as a classmate who asks for love advice from Miyuki at the student council room. In his first appearance, he asks on how to confess and ask Nagisa out. His next love advice is about him wanting to hold his girlfriend's hand and so he then confessed to Nagisa and both were in the Volunteering Club together. After the summer break he meets with Miyuki to brag about his relationship. Next he asks to help figure out Nagisa's reason to be angry. In his 6 month relationship anniversary, he asks for help from Maki to get a gift for Nagisa.

Series Appearances




  • The name Tsubasa means "wing" (翼).
  • Tsubasa has palmar hyperhidrosis.
  • Tsubasa is the son of a hospital director.
  • Tsubasa's name was only revealed on Chapter 109 when Maki mentioned it. Prior to that he was only referred to as "Kashiwagi's Boyfriend".
  • Additionally, Tsubasa's family name was first officially confirmed on August 25th, 2019 in a Q&A tweet by Aka Akasaka.
  • Maki has a crush on him.


v  e
Shuchi'in Academy High School
Faculty Adolphe Pescarolo
Third Year 3-A: GigakoPrevious Student Council PresidentTsubame Koyasu

3-B: Kazeno
Unknown Class: Mass Media Club PresidentYume Atenbo

Second Year 2-A: Ai HayasakaKaguya Shinomiya

2-B: Chika FujiwaraGo KazamatsuriMaki ShijoMiyuki ShiroganeNagisa KashiwagiSaburo ToyosakiTsubasa Tanuma
2-C: Erika KoseHayato HongoKaren KinoMomo Ryuju
Unknown Class: Mikado Shijo

First Year 1-A: Kozue Makihara

1-B: Kobachi OsaragiMiko IinoRei OnoderaYu Ishigami
Unknown Class: Koromo Shiranui

Unknown Year Daiki SatoMakiMasaru KobayashiTakkyTeppei Tanaka
v  e
Shuchi'in Academy Clubs
Archery Club Kaguya Shinomiya
Astronomy Club Momo Ryuju
Cheer Team KazenoTsubame KoyasuRei OnoderaYu Ishigami
Mass Media Club Mass Media Club PresidentErika KoseKaren Kino
Occult Research Club Yume Atenbo
Tabletop Gaming Club Kozue MakiharaChika FujiwaraGigako
Volunteering Club Nagisa KashiwagiTsubasa TanumaMaki Shijo
v  e
Tanuma Family
Tsubasa TanumaShozo Tanuma
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