Azariah is a magic academy in a medieval-fantasy world. our 2 protagonists, Corops & Ecu, are roommates in the Azariah boarding school.
When Ecu has just come out of his shower, he sees Corops, studying how to make poison potions, but he seems to have difficulties...

This is the wordless version of the comic, if you want some words, it's here : https://e621.net/pools/35512