Meet Han Y/n, a seemingly ordinary teenager leading a content life with her mother. Everything appeared perfect until their lives took an unexpected turn. Y/n's mother remarried a wealthy businessman who was dangerously infatuated with her, turning out to be a part of the sinister underworld's infamous group known as the Seven Sins. These Seven Sins were individuals who relished in wealth, violence, and intimidation, finding perverse satisfaction in their deeds. However, their father, the leader, fell in love with a woman and decided to marry her, replacing his previous family members. Notably, this woman had a grown-up daughter, introducing an unfamiliar dynamic to the group. They were compelled to act kind and welcoming, concealing their inner resentment towards their new family members. Y/n, determined not to accept this newcomer as her sister and refusing to let her replace Soojin, vowed to protect her late sister's memory. Each member of the Seven Sins struggled with their own internal conflicts: "I won't allow that woman to take Soojin's place as my sister." "I can't bear to see her leave us like Soojin did. Princess, please be okay." "She's our sister, and it's our responsibility to shield her from these monsters." "We are and forever will be siblings; no one can sever our bond." This story weaves a tale of siblinghood, mafia ties, conflicting emotions of hatred and love, and the ultimate sacrifices they are willing to make to protect their newfound unity. Let the game commence... Cover credit to @TheLunaCommunity @Naveena_bts