秉持(chí )着(🔨)“损友”原(🥇)则厮混多年的青梅(méi )竹马卢嘉嘉(🛍)（李(lǐ )(🕰)婷婷(🤴)饰(shì )）和年孟(🎹)宇（刘芮麟饰）在高中毕业(yè )后一起去(qù )上(👋)海(⏬)读医科大学。年孟宇凭借自(🐿)己的(de )经(jīng )(👑)济(jì )(🎩)头脑和(🛍)家庭关系开始在校(🔲)创业，财迷卢嘉(jiā )嘉(jiā )则为给异地初(😚)恋(liàn )男友买手(🚸)机变身年孟宇“御用(yòng )(🤷)会(huì )计(jì )(💞)”顺便(🌙)兼职“拾荒”。之(🚨)后卢嘉嘉(jiā )认清感情决定(🎛)分手，年(nián )孟(💻)宇却被学(xué )校的古(🏂)典美女孙(🌞)晓慧（肖雨(yǔ )饰(💪)）吸(🎾)引。孙晓慧作为情场(chǎng )高手玩弄年孟宇(👺)于股(🏯)掌，在(🥕)卢(lú )嘉嘉的(de )帮助下才认清(👣)真(zhēn )(🗳)相。此时(shí )，卢嘉嘉的(🍑)代课学长(zhǎng )(🚗)姜枫喜欢上卢嘉嘉，年孟宇也渐渐意识到(dào )自己对卢嘉嘉的感(gǎn )情。非典的意(📧)外到(dào )来(lái )让三人开(kāi )启(qǐ )同(tóng )居(jū )生(🔷)活，姜枫向卢嘉嘉表白(bái )却被拒(🌂)绝。年孟宇终于意识(🔥)到和卢(📞)嘉(jiā )嘉多(duō )年损友背后(🕕)的(😳)爱情(qíng )真(zhēn )相(xiàng )