This is a lovey-dovey shota story about two calligraphy classmates who end up mating after a love confession. One shota is pretty much at the top of his class while the other writes like his brush is a chicken trying to get away.
Title: Koizome Kyoushitsu
English Title: Love-dyed Classroom
Artist: Sakaki Tsui
Anthology: Shota Scratch 16
QC: aspect, ShotaCat