I'm surprised that the author made Izumi have better grades than Shikimori even if the gap isn't large. Usually in these kind of romance manga, the girl is always superior to the guy in so the idea of the guy having his own strong suits and the girl having some semblance of flaws is kind of surprising. Now that I say that, watch future chapters have Izumi be so distracted by his girlfriend's cuteness that he messes up on the test and Shikimori becomes truly better than her boyfriend in every conceivable way.