[Original Webtoon](https://www.cmoa.jp/title/326303/)

Inspector General of the Special Division, has been hunting the serial killer Zero for years, and her pursuit has become an obsession. But who could have known that Jiang Tan, the brilliant doctor who is always by Xia Zhi’s side and enjoys her complete trust, is actually Zero’s other face. When her lover turns out to be two-faced, both an angel and a devil stand before her… Genius Doctor: “I need to use bodily fluids to control your mind and calm your hormonal activity. I’ll need to take a deep sample. I’m a doctor—surely the Inspector General won’t think too much of it?” Serial Killer: “The hormones the Inspector General is secreting—is it because I’m making you happy? I’m so glad~” (Source: Bilibili, translated)