USBA-018 Actually, I... am a masochist. I imagine being humiliated or defiled during masturbation. A hidden big-breasted part-time worker from Aomori with uncontrollable masochistic desires, Yuna-san, 23 years old.

Graduated from a junior college in his hometown of Aomori. He originally had few friends and was a so-called shadow character. She just has a great delusional power, and since she was in junior high school, she has been humiliating herself with masturbation and stirring up her female genitals while imagining being soiled. After that, she associates with a de S person and awakens as a masochist. After moving to Tokyo, he works part-time at a food processing factory, but the stress at work builds up and he masturbates like crazy every day. She couldn't stand it any more, and aspired to be a hard ryo shooter.