Issei Tsubaki (椿 一成 Tsubaki Issei) only appears in Full Metal Panic? Fumoffu. He is the president of the karate club at Jindai High and Sousuke Sagara's rival who is a skilled martial artist, but he requires thick glasses because of his short-sightedness.


  • The name Issei means "one" (一) (is) and "become" (成) (sei).
  • Issei's surname Tsubaki means "camellia flower" (椿).


  • Issei is sometimes accompanied by three identical karatekas, all black belts.

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