There are some obvious cliches in the story like the "playing dumb MC/FMC", the "childhood first love", the "beautiful girl attached to the 'average' guy" or the "fuckboy who will not touch the beauty childhood friend", but I guess most of us didn't notice one: Himari's hair, she has an "ahoge", which basically describes her as a dumb girl doing chaotic stuff for the sake of the plot. Once I noticed it, I stoped complaining about the mess she's doing.
Also, this is a rom-com about high school kids from Japan, I don't expect a fast resolution when the whole plot is about the two main characters discovering their true feelings.
I learned this since I started watching/reading Japanese com-coms: if MC and FMC exist, they will end together no matter how big their harems are, so I know Himari and Natsume will discover they love each other, Enomoto is just the "trial" they need to understand how deep their relationship already is.
Sometimes the ride is the interesting part, but sometimes it can get unbearable (you know the story I'm talking about).