Teh manga is a lot better if u ask me, teh art is beautiful! Teh melancholic part feels heavier and lonelier in the manga. Sadly you lose music and Minase Inori performance! It's a good anime adaptation, but as commonly - not everything from teh manga is addapted into teh anime. I usually read teh manga instead if rewatching an anime, or- other way around if i started with teh manga. Wait a year, then read it. :3

Why don't you read Shimeji Simulation? Also from tkmiz