In 2017 Yamasaki starred in a stage adaptation of the Akimi Yoshida manga Umimachi Diary. In 2018 a photo exhibition featuring  previously unpublished photos of Yamasaki was held at Tokyo Arts Gallery. Also in 2018 Yamasaki joined the cast of Hitokowa, a horror drama on the Hikari TV Channel.
Yamasaki starred in a stage production of Umimachi Diary by Akimi Yoshida in 2017, and an exhibition of his previously unpublished photos was held at Tokyo Arts Gallery in 2018. Yamasaki also joined the cast of Hitokowa, a horror drama that aired on Hikari TV Channel.