Koichi Watanabe has 3 screen credits in a career dating back to 2016. Signature works include K-1 WORLD GP 2017: Heavyweight Championship Tournament, K-1 WORLD GP 2016: 60kg World Tournament, K-1 WORLD GP 2017: Super Bantamweight Championship Tournament. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
