Colette is a young girl who lives in seclusion with her master deep in the mountains of a certain country. What she is learning from her master, Priscilla, is not alchemy, but alchemy! Alchemy is a revolutionary technique that uses the semen of living creatures to synthesize items. But Colette never had sex before. Colette was able to become a full-fledged alchemist thanks to Priscilla's rather forceful guidance. Priscilla gave Colette a gift now that she was on her own. "My, atelier...!" Colette gets her own studio and tries her hardest. But in one of the quests, a powerful demon interfered with her achievement. What appeared in front of the troubled Colette is a beautiful young brave girl with big tits! Alchemy using semen as material = alchemy How much of a paradise is it to feel good and earn money!?