Tsubaki forms a "strange friendship" with Kirishima, using him for intelligence about Yoshino, while simultaneously threatening to destroy him if he acts as a "worthless scumbag". With Shouma Toriashi:
Tsubaki Sannomiya is a prominent actress in the “mature” and “dramatic” JAV categories, typically cast in roles requiring emotional depth, vulnerability, and intense physical performance. Married Woman Sold to the Yakuza Tsubaki Sannomiya
Without direct access to the content, I can only speculate about the production quality, acting, or writing. If you're interested in this type of story, you may want to look for reviews or ratings from other viewers to gauge the overall quality. Tsubaki forms a "strange friendship" with Kirishima, using