People are starting to become a little unhinged.
Fumi and Sakura are both in mainstream films. They're not doing JAV or explicit scenes. This is standard drama in stories involving actors. This is standard comedy in high-school rom-coms (ex. school play arcs).
The conflict in Sakura's plotline is whether she should continue to do more adult oriented material. She wants to. The other female characters are supportive because the author's message is some sort of women's liberation.
Her boyfriend doesn't because he doesn't want her to be typecast as that sort of actor.
The conflict in Shinobu's plotline is whether Fumi should have her nude debut. She wants to because she wants him to look at her and for his project to succeed. He doesn't because he doesn't want his girlfriend acting out scenes like that nor does he think her sacrificing herself is right.
Next chapter, the final one, is easy enough to wrap up when you calm down a little and remember what is actually happening.