Koro-sensei and tentacle-having humans (e.g. Itona) have a drastic difference in their bodies: Koro-sensei's body is made up of tentacles wholly, whereas Itona has his human body along with a tentacle.

Are there any differences between the no. of the tentacle cells infused? If yes, it's a fact that even a single tentacle cell can cause death like pain, then how did Koro-sensei survive that much pain?

  • Bonus question- Tentacles do not consume human body (eg itona) , they form their separate organs(tentacles). Whereas , in case of Koro sensei, the body is devoured to shape a octopus tentacle made body .Where did his human body go ?
    – Varun
    Commented Jan 2, 2018 at 17:47
  • 1
    Re: your bonus question, isn't it already answered on your own question?
    – Aki Tanaka
    Commented Jan 3, 2018 at 2:15
  • Thanks senpai , I understood the meaning 😄 And thanks alot , you always help me with my queries @AkiTanaka senpai 😄 , good to have a knowledgeable senpai like you .
    – Varun
    Commented Jan 3, 2018 at 8:43
  • Koro's tentacle changed his body because he wants to have a weak huggable body, Commented Apr 19, 2018 at 7:28

1 Answer 1


The most important point is that Koro-sensei told his tentacles that he doesn't want to be powerful, so they became like they now look.

The other tentacle monsters only wanted power and told the tentacles, so their tentacles became hard and strong.

  • Welcome to Anime & Manga. While this answer might be correct in general, could you also answer the asked questions about the no. of the tentacle cells infused? You can always edit to improve your post. Meanwhile, consider taking a quick tour to understand how this site works.
    – Aki Tanaka
    Commented Feb 24, 2018 at 12:08

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .