Chou Tzuyu, an orphan who lives at the Seoul Orphanage with Lady Song (the one who takes care of the orphans), would always get bullied by a group of students from her high school for being an orphan. Tzuyu would always keep her feelings deep inside by not telling anyone about her being bullied. One day, a man named Han Sung-soo visited the Seoul Orphanage when he heard about Tzuyu from Lady Song. Filling out the adoption sheet, Tzuyu ends up living with the Seventeen members at their dorm which was a total shock to Tzuyu. Living with them was like a new family to her and it makes her happy. Now having conflicts with Joshua and Mingyu, she can't do anything but cry and be weak all the time. What were to happen if everything changed the way she thought it wouldn't be? Find out in this fan-fiction, "My Angel's Black Wings".