秉持着“损友(yǒu )”原则厮混(hún )多(📼)年(📒)的青梅(méi )竹马卢嘉(jiā )嘉(李婷婷饰)和年孟(mèng )宇(yǔ )(刘芮麟(🥈)饰)在高中毕业(yè )后一(🥩)起去上(shàng )海读(🌫)医(👋)科(kē )大学。年孟宇凭借自(🚤)己的(de )经(🐿)济头脑和家庭关系开始(🕯)在校创业,财迷(🛹)卢(lú )嘉嘉(🚥)则为(wéi )给异(📞)地初恋男友买手机(🙁)变(😻)身年孟(🚑)宇(yǔ )“御用(yòng )会计”顺(shùn )便兼职(🚢)“拾荒”。之(zhī )(🥁)后卢嘉嘉认清感(🖲)情(🔢)决定分手,年孟宇却被学校(🙂)的古典(diǎn )美女孙晓(🤠)慧(huì )(🤸)(肖(xiāo )(🙄)雨饰)(🙀)吸引。孙晓(xiǎo )慧作为情(🥫)场高(gāo )手玩弄年孟宇于股(gǔ )掌(👺),在卢嘉嘉的(de )帮(bāng )助(🧟)下才认(rèn )(🤖)清真(zhēn )相。此时,卢嘉嘉的(de )代课学长姜枫喜欢上(shàng )卢(lú )嘉嘉,年孟宇(yǔ )也渐渐意识(shí )到(🌪)自(💅)己对卢嘉嘉的感情。非典(💿)的意外到来让三(sān )人开(kāi )启(qǐ )同居生(shēng )活(huó ),姜(🔷)枫向卢(💸)嘉(🥅)嘉表白却被拒绝。年孟宇终(👄)于意识到和卢(🔥)嘉嘉多年(nián )(⏳)损友背(🎐)后(🍁)的爱情真相(xiàng )