Anoiseiscomingfromthefloorupstairs.Eunsu,hearsthisforoveramonthwhichcausesuncontrollableangertoriseup.Shegetseliminatedagainfromacompetitionshehadpreparedforalongtime.Eunsudecidestowriteherlastpiecewiththethemeofthenoisebetweenthefloorsandpersuadesherfriendtohelpherfollowandtrackthesecreteee
