Bang Yoomi is Yongguks younger sister, one he chose to forget about because he though he was abnormal. Yoomi moves to live in a mansion located in a forest, the exact forest Yongguk and his gang inhabit and finds Yongguk. Little did he know that Yoomi has the same abilities as him, they can both transform into wolves, like the rest of Yongguks gang named BAP.                                  

What Sunggyu has to go through (Oneshot) There are no pairings in this story, maybe slightly but not extreme. Seriously don't know how to write a description XD