Kikuchi was a member of the Giants Fan Club. He even watched a game at Tokyo Dome in 2002, right around the time he started playing baseball. He liked following the foreign players, like Hector Almonte, Gabe Kapler, and John Wasdin.
Source: Sponichi 6/8/2016
Kikuchi’s wife, freelance reporter Rumi Fukatsu, is a newscaster on NHK BS1’s World Sports MLB. For Kikuchi, it was love at first sight when he saw her in the fall of 2013. He tried to set up a meeting through a mutual acquaintance, but was continually turned down for two years because she wanted to maintain a professional relationship with athletes. He finally managed to organize a casual dinner get-together that included a mutual friend in November 2015. They started dating in December and he ended up proposing just before the start of the season in March 2016. They filed marriage papers on her birthday, June 24.
Source: Sponichi 7/7/2016
Kikuchi recorded the second one-hit shutout of his career on April 21. He became the twelfth pitcher in NPB history (third in PL history) to toss a one-hit shutout where the one hit allowed came from the first batter he faced in the first inning.
He also recorded his eighth double-digit strikeout game (fourth during shutouts).