part 1 :last day of japan

Y/n is a rather bubbly person but is shy and she is a mafia.She loves to play Mortel combat. She is depressed. She is bullied. She try to kill herself once. Stay kids and twice are related to each other.Twice is the school qeeuns but isnt a slut. Straykids is the school bullies.Mr park(aka Straykids and twice dad)is a mafia king.
Straykids are mafia princes.
Twice is mafia princesses.
Ms kim(aka yns mother)is not a mafia she kind and rich.But since yn sister died and father died she became distant with her mother.