[ShallwegoonatripJinwookandSoricouplehavebeendatingfor6yearsSorirandomlysuggeststhattheyshouldgoonatripalongwithherbestfriendMiraandherboyfriendItisbecauseshepromisedwithMirabeforethatthefourshouldgoonatriptogetheronceMirahasaboyfriendJinwookdoesnotfeelcomfortablewithherplanbecausehehasnotbeeninte]