毛蔻追随着暗恋的高中校友孙诺，考取了并不喜爱的X大学，在这里她遇到了心机女李安妮、天真单纯的齐李同心、傻大姐罗慧敏三个室友。由于孙诺与她若即若离，毛蔻在孤独中认识了挺身救人的罗朔，两人被大家误以为是男女朋友关系，而这一切孙诺看在眼里更是急在心里。李安妮一直在追孙诺，知道孙诺喜欢毛蔻，便想方设法从中作梗，并逼迫孙诺与之建立契约情侣关系。经过各种阴差阳错，阿朱和罗朔在毛寇心里的分量越来越重。而就在她平静如水之时，罗朔站在她的面前告诉她说，他放不下毛蔻，所以追随她来了。(MaoKouhasappliedforUniversityXwhichisnotheridealchoicebecauseherhighschoolalumniSunNuo,onwhomshehasasecretcrush,entersthisuniversity.Thereshemeetsthreeroommates,thecalculatingLiAnni,theinnocentQiliTongxin,andLuoHuimin,whoistooniceforherowngood.WhenSunNuo’sfeelingstowardMaoKouremainambivalent,thelatterbecomesfriendwithLuoShuowhooncecomestoherrescue.ManyassumethetwoareromanticallyinvolvedandSunNuoistorturedbyjealousy.LiAnniisconstantlytryingtoseduceSunNuo.KnowingSunNuoisactuallyinlovewithMaoKou,shemakeseveryefforttocausetroubleandforcesSunNuotobeherboyfriendbycontract.Aftermanycross-purposesandcoincidencesMaoKoubecomesincreasinglyfondofAhZhuandLuoShuo.JustasshefeelsresignedLuoShuotellsherhecannotforgetMaoKouandfollowsherallthewayhere.)...