Adult PC Game: Resort Boin Final by Crossnet Archive

Daisuke is a high school teacher. He starts off on a journey to the southern islands during summer holiday. Blue sky, blue sea, white sand and girls in swimsuits.... But all his money is stolen by a monkey along the way..., and he reluctantly starts to work part-time at a restaurant near the beach. He meets six girls with big breasts there, and his exciting summer holiday starts....

Resort Boin Final by Crossnet Gameplay Preview