Kōhei Watanabe
- Born
- 28 November 1997
- Age
- 28
Kōhei Watanabe (渡辺 航平, born 28 November 1997), who also uses the pseudonym Kō-chan (こうちゃん), is a YouTuber, quizzer, writer and professional mahjong player who works in Japanese. He studied in the Humanities and Social Sciences I division of the University of Tokyo, and his work period began in June 2017. His X account, 
Miracle_Fusion, had 245,333 followers in February 2023.
Kōhei Watanabe’s social media accounts
2 external identifiers
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