Boku to Hitozuma no Midara na Renkin Jikken ~H na Kusuri de Fukuramu Oppai, Afureru Milk!

Love experiments gone wild! To save the woman he loves from her crushing debt, a novice alchemist churns out potency potions for quick cash!
Ambrosia, bust-up drugs, tentacle plants... all manner of exotic delights, no matter the consequence!
If it's trending he sells it! His reckless experiments keep the heroine in shame and delight!
How long until this factoryline erogeny blows its hot load all over their faces?

"You're working for me now," said Baldam of the Guild, to Harace and Minion.
"You run Liloi's workshop now."
Harace was a novice alchemist.
He worked for Liloi's workshop, who was his senior back at school.
After burning through funds, Liloi was nowhere to be found.
Now the guild was taking back capital invested in their workshop.
The responsibility to repay it now fell on Liloi's wife Minion, who Harace secretly admires.
They had no choice but to swallow Baldram's command
until the debt was paid. And the fastest road to cash was... sex drugs.

[From DLsite English]