C298 One Needle

"Accident poisoning?"

Gu Yihang was stunned for a moment, then said with a laugh:

"Kid, are you joking? Alright, then tell me, which two types of things in this kitchen combine to produce organic phosphorus?"

"Idiot."

Gu Fengji also snorted coldly. His relaxed and aged face revealed some disdain.

"In daily life