She was away for a week on a family trip, so I creampied her big-breasted friend.

She is seduced by her busty friend who can't touch her, and has had sex with her infidelity! Tatsuya was supposed to be alone for the first time in a long time after a family trip with her, when she was living together. However, she suddenly gets closer to her best friend Sari, who came to a drinking party she held before she left, and her drunken slept. After she went on a trip, she began living together with Sari, who came back to visit, and Sari, who had sex every day for the week before she returned...