Potion Koujou ni Sasen sareta Renkinjutsushi, Bishoujo ni Rachi sare Ikoku de Itsunomanika Eiyuu ni Naru

Court Mage Jurius Kaiser has incurred the wrath of the third prince of the kingdom of Zweig and is demoted to mere sweatshop alchemist. There he toils, until a pair of beautiful and scantily-clad elf girls appear! The moment he shoves his face in those mind-boggling bosoms, he's bound by their magic, and the adventure begins?! Will Kaiser's righteousness win the day...and how will he spend his nights?!

(Source: Seven Seas Entertainment)