Zoku Koihime

Musashi had come back to his village again. He had lost his memory, the village and his grand mother's house made him regain familiarity. He was welcomed at his grandmother's home, and met a girl named Tamamo. She said she was his childhood friend, but he couldn't recall her at all. At night, he was lured by a strange smell, and they had sex. Then he met some girls in the village and they fucked in a cave, All the girls fall for him but there is a mystery why this is happening to him.