HoriMiya - Kyouko Hori + Izumi Miyamura
Just like the name suggests, the anime is a story between two students. Miyamura is a gloomy and lonely guy and Hori is smart, popular and cheerful girl. Every character is well developed, everyone has a unique story. After a particular incident, hori and miyamura started to get close. Their story of getting together is amazingly written. Animation is well executed and story is already amazing. There are a lot of comedy scenes in which you can't stop laughing. TBH, there isn't a single episode in which I didn't laughed.
Personally, It is one of my top 10 animes. I have already watched it around 4-5 times. I personally recommend it as well.