秉持着(zhe )“损友”原则厮混(hún )多年的青梅竹马卢嘉嘉(😘)（李婷(🛍)婷饰(shì )）和年孟(🎺)宇(🔧)（刘(🎹)芮麟(🥈)饰）在(zài )高(gāo )中毕业后一起去上(shàng )海(hǎi )读(dú )医科大学。年孟宇(♑)凭借自己的(de )经济头脑和(🎩)家庭关系(🎡)开始在校创(chuàng )业，财迷(🛹)卢嘉(jiā )嘉(🚥)则为给异(yì )地(dì )初恋(🥞)男友买手机变身年孟宇“御(yù )用(yòng )会计”顺便(💞)兼职“拾(📎)荒(huāng )”。之后卢嘉(jiā )(🚨)嘉(🛑)认清感情决(❔)定分手(🌑)，年孟宇却(🥔)被学(🗞)校的古典(diǎn )美女(nǚ )孙(sūn )晓慧(huì )（肖雨(yǔ )饰）吸(🙉)引。孙晓慧作为情场高手(shǒu )玩弄年(nián )孟(mèng )(🕙)宇于股掌，在卢(🤳)嘉嘉的帮助(zhù )下才(cái )(🧣)认清(qīng )(⚾)真相。此时(🤘)，卢(lú )嘉嘉的代课学长(zhǎng )姜枫(💍)喜(xǐ )欢上(🦇)卢嘉嘉(jiā )，年孟宇(yǔ )也(yě )渐(jiàn )渐意(🤷)识(shí )到自(💅)己对卢嘉嘉的感情。非典(💿)的意(yì )外到来让三人开(kāi )启同居(👌)生活，姜枫向卢嘉(jiā )嘉表白(🏃)却被拒(🚲)绝。年(🌂)孟宇终于意识(🖍)到和(💣)卢(lú )(🔥)嘉嘉多年(nián )(⏳)损友背后的爱情真相