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Koichi Nanase (ナナセ・コーイチ?) (aka KO-1 in GBN) is a character from Gundam Build Divers. He is the builder and pilot of the Galbaldy Rebake.

Personality & Character

Though he was once an excellent Gunpla builder good enough to appear in the World Tournament, a certain incident led to his retirement from Gunpla Battle.[1] Four years ago, the members of his team decided to quit, after the scene shifted from GPD to GBN.[2] The efforts of Riku and his friends touch Koichi's heart, and he decided to make his comeback as a member of their force.[1]

Skills & Abilities

Before Koichi retired from competition, it was said that he could have been number one in the world.[2] His achievements then are as follows:

  • 3rd in the Japanese Gunpla Championship
  • 8th in the World Tournament



Nanami Nanase

Koichi is the older brother of Nanami.


Notes and Trivia

  • Koichi's alias "KO-1" (pronounced just like his normal name) is a wordplay on his name, with 'ichi' being Japanese for the number '1'.


  1. 1.0 1.1 Official site (English)
  2. 2.0 2.1 Gundam Build Divers Episode 6, Past and Future

External links


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