Inb4 it goes an unexpected route by the time a final arc happens.
Another timeskip, but of 2 decades. Shinobu in his 40s as a famous (yet brooding and depressed) producer with rumors of also being a casting coucher because he doesn't have a wife yet for some reason sine a few years ago he tends to repeat a same type of actress as the main heroine in his projects so it's implied he frequently fucks a specific girl even though he denies those allegations. It just happens destiny made him cross with someone who looks and even acts like Sakura when he was in his late 30s, but it happens it's her daughter. Sakura's career naturally falls apart somewhere around her late 20s, she becomes a whore, with Yuma as her pimp, but that also falls apart and Yuma dumps her. Daughter, as a mean to help her mom and also escape the hellhole lf a life she was stuck into, offers herself as a candidate for main heroine in one of Shinobu's newest projects: that project being called GraPara! Unlike Sakura, the daughter actually falls for Shinobu despite of the brutal age difference and he, despite of trying to be professional, ends falling into temptation, not knowing there will be consequences. The movie is successful, but Shinobu didn't realize it reached Sakura's eyes. Out of curiosity, she goes, sees the credits, identifies Shinobu as the producer and sees her daughter as the main lead and thinks it's Shinobu's revenge against her, so she goes and confronts him. The shit turns into a scandal that may end ruining Shinobu's career, but also unravels Shinobu never got over Sakura and made the mistake of using her daughter as a placebo/revenge.