I've skipped about 60 chapters and read occasional summaries up to this moment. And all the major plot progress can be described in a few sentences:
Kazuya reaches an ultimate simp stage and starts a kickstarter for Chizuru's movie. They make a movie. During the premiere her grandma collapses...
@Saki-movement Agreed. I mean, he seems like a nice person and someone who can take care of her. Kazuya needs years of self-improvement before he can deserve her.
You know what I've noticed? MC barely initiates anything and if he does, it's like pulling teeth. Most of the time he reacts to situation. And that just makes him look like an ambivalent amoeba