Umm..The difference here radicates in Mai Sakurajima being an established position in the entertainment industry. Albeit some lack of realism could be there, she left that industry by opposing to be a gravure model (but she honored that contract first), so that industry had got they lost a lot by that quitting, so when she returned, she was able to do it under her terms.
Anna Akino doesn't have that leverage, she is still a raw diamond, so she is not in position to make demands under risk of being ostracized into a C-tier actress. She still lacks a lot of successful films and TV series for her to dictate her terms regarding kisses and torrid scenes.
Actually, Mai Sakurajima was never a gravure model. She was forced into a swimsuit photoshoot in 9th grade by her mother (who was also her agent), despite her clear objections. That shoot was a major emotional breaking point for her, and it directly led to her stepping away from the entertainment industry altogether. So no... she didn’t “honor” that kind of work willingly, nor did she build her success on it.
That’s exactly what makes Mai’s arc in Bunny Girl Senpai so powerful... she confronted the hard stuff early, even before her relationship with Sakuta fully took off. Meanwhile, Yamada’s arc still feels one-sided, with Kyo constantly giving while she stays emotionally sheltered. It’s not just about industry clout... it’s about personal maturity and sacrifice. Mai and Sakuta's relationship feels very balanced. Here it feels one sided.
That said, I do get it... Yamada’s nowhere near as emotionally mature as Mai, so the comparison isn’t entirely fair. But it was frustrating watching one character give so much while the other continues to drift. It's why I stopped reading this manga properly and now just jump in randomly to check where the author is taking this