Her boyfriend gets an unfortunate video call on his phone… seeing her with this man, and seeing her in so much pleasure that he just couldn’t give her.
She’s basically a living onahole for this guy at this point.
Original title図書室ノ彼女~清楚ナ君ガ堕チルマデ~ THE ANIMATION도서실 그녀 ~청초한 네가 타락할 때까지~Toshoshitsu no Kanojo: Seiso na Kimi ga Ochiru made The AnimationThe Girl in the Library ~Until the Pure You Falls from Grace~