1. Neither the attacker nor the spouse had a happy childhood, and both had a dark history.
2. Xia·The inner world is rich and colorful·Disability·Pseudo-forensic translator of real animal language·Slightly cute·Mo × fifth·Yandere in the early stage and tsundere in the later stage·Perfectionist·Duplicity·Yin
3. Attack and receive 1v1 and be both physically and mentally clean.
4. The author has never been a forensic scientist and cannot compile any difficult cases (show your hands). Maybe a certain chapter will be a little OOC.
5. The background is similar to a multi-racial world, with certain modern knowledge.
Intent: Two dark people redeem each other