Cold-blooded cruel killing machine x simple and kind human being.
Copywriting: The first advanced android with autonomous consciousness created by the "439" laboratory was born into the world - Song Yan, and the subject of this experiment, Song Yan. The two met by chance due to an accidental collision, and the intersection occurred due to their attention to both parties... From then on, the gears of fate began to rotate around the two of them...
Concept: Two male protagonists