An Assassin's Love ManualShāshǒu Shèchù Liàn'ài Shǒucè; 杀手社畜恋爱手册; The Assassin's Love Manual; Shashou Shechu Lian'ai Shouce; An Assassin's Love Manual

One night, an assassin disguised as a high schooler runs into his drunk neighbor, who plants an unexpected kiss on him. From that moment on, he must keep his secret identity hidden while figuring out how to deal with the mister living upstairs.