maybe he’s a secret genius?

I have the same question... But probably the universe pitted him, and gave him a bunch of luck

I believe almost 100% that he didn’t pass and Megumi’s dad just let him enter so that his plan of getting Tsugumi’s neck bitten by another alpha would work. I think it’s going to come to light later on.

Right. It was said on the most recent update... He is trying to manipulate them for a break up... Thought it will much fun if he really did pass comic relief...

Was it said anywhere that he's "school dumb" ?
Like, yes he's weird and lacks common sense but, who knows he might be good at studying if he wants to

I had a classmate who had some of the best grades but he'd say and do the dumbest things outside of class

Well he did fail 3 of his subjects finals in one chapter. And he said he wanted to spend the summer sleeping, so you would think he would have spent the minimum amount of effort to pass if he was “school smart”.

Maybe he’s never actually tried and is smart, but I think it’s probably that academics aren’t his skill. He even said while studying he basically needed help in all the subjects except gym lol.

I think he has a knack for studying but just isn't interested at all in class before megumi. But now he has a motivation to actually study, like he a fast learner or something.