[ABP-725] Her older sister is a tempting prickly girl. I went to her house to play and I was pressed the sister in to a relationship … Aine Maria

Aine Maria was walking on the street when suddenly a perv b*stard randomly attacks her. Then, a stranger comes to the rescue and helps Maria. She barely has any time to thank him. But when Maria returns home, she finds out that the mysterious white-knight who helped her is his little-sister boyfriend!.

So Maria wants to return the favor and help him back, help his dick.