Ageman to Fukuchin / AgeMan and FukuChin

The hentai is based on the manga of the same name by Gyuu Jirou and is a sequel to the 3-episode series "Yaruki Manman". 

Kazuma-kun is the only heir of the Shinno family and is about to take the place of the head of the family. However, he has no sexual experience at all and his father is completely unhappy about it. Kazuma goes to sex school to gain useful sexual experience and find confidence in interacting with ladies. While on sex training, the guy is forbidden to finish inside the girls; if he finishes, he will lose the right to inheritance. Hot Japanese geishas will hold Kazuma-kun off until the end; will he be able to finish his training without consequences?