Saintess Eruna and the Lustful Book of Corruption ~Busty Sister's H Services~ Steam Unlock

One day, the sealed book suddenly exuded light, and a powerful succubus invaded Eruna's body. To suppress the succubus in her body, she has to keep taking “love potions”... Can Eruna resist the effect of the love potion and protect her purity from the men and the succubus?