It’s what makes the author so good. She puts in arguments to make it justifiable to pursue a hedonistic lifestyle.
I think that might be jumping the gun slightly
The previous manga featured someone who got a second chance to get the one who got away as well as fixing her crush's future, it was in essence driven by love
In this one, yes Nakano is living a very hedonistic lifestyle but we don't know if she is gonna have a character arc yet, and she isn't exactly arguing for her lifestyle
As for the kinky office lady, "I can't approach my crush so I have to went my frustrations somewhere else" is an old trope