I remember holding back on watching the anime because the synopsis sounded like it would be a good story but get sad and depressing(for some reason) but when I finally decided to watch it I was surprised by how cute and wholesome it was.
So that is what Miko Iino from Kaguya-sama was reading...
Seriously though, this manga has a lot to say about love and feelings. And at least in 4 chapters you'll need a handkerchief. Because of the feels.
Oh, and if you're wondering whether to read it since it'll be boring because of the happy endings (since there is more than one pair of characters who like each other), then let me say that not everything will end up the way they want. It's gonna be a ride to remember.