MIDV-990 _3 days and 3 nights of making love at a small inn with my lover's sister

Tet is coming and spring is coming all over Japan. But instead of gathering around a pot of green banh chung on New Year's Eve, Tuan invited his girlfriend to go to a hot spring to satisfy his culinary passion at a restaurant. However, Tuan's girlfriend is not too fond of eating, so she called her sister Aoi Ibuki to come with her to protect her and have more private time to go shopping. And Aoi, while going to the hot spring together, demonstrated the "hand kneading" skill he learned at Nang*Cac restaurant, making Tuan so fascinated that he couldn't stop. Will Tuan change his girlfriend? During the trip, will the three of you learn how to make any kind of cake other than cream cake? Please follow!