[Hijiri Tsukasa] Jerk-Off Assistant! Experiment (ONA-ASHI! ~Ero Mangaka no Onanie o Tetsudau Shigoto~)

A timid assistant named Yuuka volunteers to aid a reclusive, shy manga artist in an intimate experiment to gauge his response, leading to a playful yet charged encounter. As the shy creator, Kanato, discovers unexpected willingness, the dynamic shifts from hesitant curiosity to a bold, mutual exploration. The story builds tension through whispered promises and the promise of a deeper connection, leaving readers eager to see how far the experiment will go.