Friend, lemme tell you about harem bullshit romcoms.
Here is the plot: Plain bullshit nobody average student is a NICE GUY and was NICE to these girls in various ways, like being their friend before they moved away for several years and had a glow up, getting her cat down from a tree, or saying they'll call the cops on dudes harassing her, thus saving her from having her butt rubbed by bad dudes. The kind of stuff any average asshole could do.
This causes these woman to desperately want this clueless dude to do lewd things with them. Progress will be glacial. He might hold a hand, accidentally kiss, or whatever, but will deffo never pick one until the series gets axed or the author ends it themselves after chapters with beach trips, onsen trips, a fireworks festival featuring them in yukatas, and possibly a school festival with a maid cafe.
If you are expecting a deep and compelling plot you are in the wrong place. You want him to be interesting? Fat chance. He is a vessel for lonely nerds to pour themselves into just like the generic OP (or not OP until the second chapter cuz his power 'awakened' and became OP) isekai dude is.
This isn't to say that all isekai or all romcom is this generic but once you start seeing signs you can practically guess upcoming plotlines.
