[8] Originally, he had planned to go to college and continue playing baseball, but after participating in the prefectural tournament, he began to desire becoming an actor.
[8] After auditioning for the TV drama "Meet Me After School" on TBS, which started broadcasting in October 2018, he was selected as the main character's partner, portrayed by Kasumi Arimura, and made his debut as an actor.
[10] In July 2019, he starred in the special drama commemorating the 50th anniversary of the opening of Fukuoka Broadcasting Don't You Think Girls Who Talk in Hakata Dialect Are Cute? [ja].
[21][5] In the same year, Mizukami starred alongside Haruka Fukuhara in the film Till We Meet Again on the Lily Hill, which was released on December 8, 2023.
For his role as kamikaze pilot Akira Sakuma, he was nominated for the Best Actor Award at the 47th Japan Academy Film Prize.