- Female protagonist: Su Lingxi (19 years old), the young master of the "Tingfeng Pavilion" of the world's number one intelligence organization. She has a lot of vitality and a little sun. She has excellent light skills but half-measured force. She likes to get into trouble but values friendship and has a lot of complaining skills.
- Male protagonist: Mo Chenyuan (21 years old), the descendant of the reclusive medical and poison family "Mo Valley", a weirdo who is cold on the outside and hot on the inside and has a poisonous tongue. He is proficient in medical and bewitching skills. On the surface, he dislikes the heroine, but in fact he is very possessive. He has the principle of "not saving her even if she is dead" but makes an exception for the heroine.
- Happy enemies meet for the first time: the heroine complains about the hero as "an ice-faced monster with a vicious tongue", and the hero dislikes the heroine as a "troublemaker", and they constantly argue with each other on a daily basis
- Forced binding interaction: When the heroine is poisoned, the hero needs to get blood at close range. "Accidental sticking" occurs frequently, and the two gradually get used to it from resisting.
- Initial excitement: The male protagonist made medicine overnight when the female protagonist was bitten by a poisonous snake, and the female protagonist used Qinggong to escape when the male protagonist was attacked by an enemy. They both said they disliked it, but quietly changed their minds.
