Since graduating from AKB48, Shimazaki has pursued an acting career, playing a supporting role in the 96th NHK asadora Hiyokko, appearing alongside veteran actor Kōji Yakusho in a series of television commercials for the national Jumbo Lottery, and playing the role of Marika Tachibana in Nisekoi, the 2018 film adaptation of the manga by Naoshi Komi.