Sayu is a researcher specializing in bio studies. After graduating from graduate school, she continued working as a research fellow, approaching her work with serious dedication and passion. Her enthusiasm for research and intellectual curiosity make her an incredibly attractive woman. Although she hasn't had a boyfriend in nearly a year, she mentions having sex several times a week, indicating it's an important part of her life. She refers to her partner as a "sex friend," someone who holds a special place even within her circle of friends. When asked about her regular masturbation habits, she surprised us by saying she's skilled with sex toys—revealing herself to be highly experienced and deeply curious about sexuality, often using vibrators. Her motivation for entering the AV industry stems from simple curiosity: "I only recently learned about AV as a profession..." This intellectual inquisitiveness extends into her sex life, driving her to become obsessed with thick, large cocks. In this video, watch as she falls completely under the spell of a well-endowed male performer, ultimately taking his cumshot straight to the face and finishing with a thorough cleanup blowjob—an alluring display of her uninhibited side. Don't miss this captivating performance.