Tachibana Satomi (立花 里美, Tachibana Satomi; "Satomi Tachibana") is one of the main protagonists of Dumbbell Nan-Kilo Moteru?. She is a world history teacher at Koyo Girl's Academy, and joins the Silverman Gym shortly after Hibiki and Akemi.


Satomi is a woman with chin-length black hair with parted bangs. She has a diamond tan mark over her belly button. She has a mole under her left eye.

Image Gallery


Satomi likes to cosplay but she is embarrassed by her hobby so she tries to hide it from her students, especially Hibiki and Akemi, whenever she meets them. She is also afraid that she'll be fired if the school board finds out about her hobby.

She gets angry about remarks about her age.


In the manga, Satomi is seen talking to Hasumi Tia, another teacher from Koyo Girl's Academy, and complains about her weight gain. Tia recommends she goes to Silverman Gym to lose weight. She is shocked to learn Akemi and Hibiki go to the same gym.

To her horror, Zina discovers she is a cosplayer.


  • Sakura Ibuki: Satomi has a crush on him.
  • Zina Void: Zina is the first of the girls to find out she is a cosplayer.
  • Kureishi Mitsuyo: Mitsuyo is a masseur and one of the only people who knows about her hobby. She is aware he is a professional fighter.
  • Kure Yakusha: Yakusha is her co-worker and senior. She respects Yakusha's physical abilities.
  • Sakaguchi Mei: She is the rival of Satomi as they are both cosplayers and Mei is more popular than Satomi. Both are also rivals of Sakura Ibuki's affections. Mei appears to be unaware Satomi is Yuria though.

Notes & Trivia

  • She goes by the name Yuria Riko for her cosplay.
  • She went by the name Hirata-san for the stage competition.
  • She makes her own costumes.



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