The part were Ren is mean to Kevin for being cringe is cringe itself. It looks so forced and it's not even funny (for me at least). His overreacting to something so little. Sorry Author, I didn't mean to be rude, I'm just stating my opinion. but this one isn't really cool.
I think it went to far as to how Ren and Doñna acts towards Kelvin. I'm not sure if it's supposed to be funny or not, but it's kinda weird. I feel like it's too forced, not sure how to explain it.