Using self-devised methods to select references from the vast amount of paintings that already exist, she examines the formation process of painting and the myriad possible combinations that can arise from her techniques. Ishii graduated from the Tokyo University of the Arts in 2022 with a BFA in Oil Painting. Recent major exhibitions include "Kōfuku santan sekai: Dat + Yuka Ishii + Koshi Yamawaki + O JUN", Mizuma Art Gallery (Tokyo, 2024); "Dai Gyakusou", same gallery (Tokyo, 2024); “Yuka Ishii and Taro Maruyama: ENCOUNTER", Mitsukoshi Contemporary Gallery (Tokyo, 2022), among others.