@daxude Why are you comparing Kazuya to other MCS? Clearly the author knew how other mcs are just developed in the same way and he wanted to try something new which he goes in depth in a boy life instead of just referencing it.
"he's in college but act like school graders with girls", so what? everyone is different when it comes to females and why should you expect him? If you think everyone is the same with females I think you are wrong.
"there's also the whole thing about how he keeps lying about his relationship, not standing firm to tell ruka to back off and basically keep digging his problems deeper.". He only lies so he can show his grandma that he is a good grandson. most of the time if you read the manga you can see nagomi bullying kazuya but I agree he shouldn't be lying and I think this is one of his flaws. "not standing firm to tell ruka to back off and basically keep digging his problems deeper.". True that he is digging his problem deeper but he doesnt want to break ruka heart just like mami did it to him in chapter 1. He wants to find a proper way to let her down instead of saying out of the bloom." "hey, kazuya and this girl have nice chemistry, might root for them", most of the time i go with "this guy is pathetic" and "how tf does this girl(ruka/sumi) obsessed with this guy"". Just because a person is flawed in one area doesn't mean you can't love them. If you are friends had a huge flaw in their life would you leave them alone?. "just because kazuya being virgin and horny doesnt make him /ourguy/ or even normal guy. author wasting several pages describing his horniness on the girls clothing doesnt make him likable.". Him been likeable is up to the reader. Not all the time you should be satisified with your main character. I honestly like Kazuya even though he does something wrong. He has done alot in the manga but I feel like people forget what he has done just because he fucks up a little bit by overthinking. For example lets start (Saved Chizuru Life, Told Chizuru to rental date with kuri so he can get out of his depression, told chizuru that she is a perfect actress when she hasn't gotten the job, saved her from getting her identity by making mistakes in the drunk arc, helped her make a movie, helped her show a movie to her grandma, told her its okay to cry (chizuru), told ruka that she can date and other things in the manga). True Kazuya is your regular mc in other romcoms who is generic and they share somewhat all the same features.