Description: Sylvia is a completely ordinary girl living alone deep in the mountains. Led by a man named Steve who came to visit her, she arrives at the frontier city of Eranberk. Then, without understanding why, Sylvia is pushed down by Steve. 'Why? Even though I should hate this...' Before she can even fully sink into the misery of her terrible first experience, Sylvia feels power welling up from her body. She had a talent for alchemy that even she herself did not know about. Awakened to alchemy by semen, Sylvia is entrusted with the development of the town using that power. Thus Sylvia begins collecting semen for the sake of alchemy and for the development of the town. With the blood of her first time flowing, the rookie big-breasted alchemist Sylvia is born! Eh, the semen she takes into her body is the source of her alchemy power? To develop the frontier city... how many men will she have to... uuh...