Bitch Majo no Atelier The Motion Anime

Ernes is known all over the world as one of the best witches.

On her modest account there are many great merits and honors, for example, she managed to cure a terminally ill king.

Which actually helped win the war against the enemy state, and she also single-handedly defeated the hydra. However, among her virtues there is one that attracts all men in the whole world. They say that Ernes accepts any men in her personal atelier and personally collects each one's sperm for analysis and brews a potion from it...