Swapping Bodies with First Love

"Falling in love? This is simply a small learning problem for me, Ling Qinyuan." But what if you become a girl and fall in love with a boy? The male protagonist Ling Qinyuan was killed by his girlfriend in his sleep. When he woke up early in the morning, he found that he had turned into a girl and was his first love - Kang Xiwei. But after Ling Qinyuan received all the memories transmitted to him by the system, he realized that the "Kang Xiwei" in front of him was not the infatuated girl Kang Xiwei he knew, but an agent girl who needed to escape from the killer every day. "The system reminds you that if you want to recover your body, you need to fall in love with the people listed below. The system will give you a 'love' score, and you can recover if you reach 900 points." "The system will create love opportunities that can reach full marks for the host. Please take advantage of them." But what Ling Qinyuan didn't expect was that the love opportunities created by the system every day would add at least one unknown buff to him. In this way, Ling Qin is willing to fight against the killer and complete a perfect love at the same time, just to return to his original body. But at the same time, in another time and space, Kang Xiwei was enjoying a beautiful and peaceful time in Ling Qinyuan's body, and used the system to become a famous singer...