Sakaguchi is a Japanese model and actor. He debuted as a model in Men's Non-no magazine in 2010, and as an actor under Tristone Entertainment in 2014. He first rose to prominence for his theatrical roles in Heroine Disqualified (2015) and My Love Story!! (2015). Sakaguchi has since starred in television series Tokyo Tarareba Girls (2017) and Shigunaru (2018), as well as films The 100th Love with You (2017) and Tonight, at the Movies (2018).