Okusama no Kaifukujutsu 1

Rui and her partner have their practice in a small village on the border of the country. Here she treats mana problems of all kinds, mostly related to sexual dissatisfaction. Rui is known far and wide for her enormous talent, which means that she has no shortage of clients. Shy adventurer Shion has never had sexual intercourse in his life, which is why he can't control his mana properly. Rui helps him out of his predicament, but she takes a liking to him in the process and since he has been abstinent for an incredibly long time, once will probably not be enough to cure him completely ...