Tsugumi, a cock-addicted pervert with an innocent face, came to a mansion looking for a cock. She was excited by the condition that if she could enjoy deep throating to her heart's content, she would be rewarded with an insertion, so she went to the basement of the mansion... Tsugumi, who has no tolerance for deep throating, is attacked nonstop by huge cocks one after another in deep throating training! The highlight of the video is her courage as she tries her best to get a reward insertion, despite the despair caused by sobbing, deep throat ejaculation, and tapioca reflux.