Reverse secret love + contractual couple + two-way redemption
Su Wanwan, an ordinary girl from the Chinese Department who appears to be well-behaved and reserved, signed a "fake couple contract" with Gu Huai, the aloof student in the Computer Science Department, in order to deal with family pressure and campus rumors. Little did she know that what she thought was a one-way use was actually Gu Huai's three-year careful plan - he had long noticed this girl who always wrote novels in the corner of the library, and the contract was just the perfect excuse for him to get closer to her.
