This story is about a cold, savage yet mature girl who lives with her mother. She love her mother so much but what if her mother found a lover after years of suffering?? How will she react when she found out that she's gonna get a stepdad?? What will she do when she found out that she's gonna not only 1stepbrother but 7 STEPBROTHERS??!!!! Y/n is a cold girl but there is mystery behind her cold self. Bts are a group of bad boys that known as the devil on the underground world. Will Bts know about the mystery of that girl??? Will y/n know the truth about her stepbrothers??? READ TO KNOW THERE WILL BE ONLY SIBLINGS RELATIONSHIP BETWEEN Y/N AND BTS