Ye Fan suddenly felt unwell, the signals from his body and his experience all indicating that he had been poisoned.
His lounge must have been infiltrated by someone who secretly poisoned him. With today's technology, colorless and tasteless poisons are ubiquitous, dissolving in water makes them even more undetectable, making prevention exceedingly difficult.
It's also his fault for being careless, underestimating the internal crisis within the base. If he had arranged for guards in the lounge, there might have been an extra layer of security. Clearly, the person who poisoned him is someone inside the base.
An outsider wouldn't be able to accomplish this. Just locating Ye Fan's lounge would be challenging, let alone poisoning him.
All signs indicate there is a mole inside the base, and this mole harbors deep hatred for Ye Fan.
If that weren't the case, they wouldn't resort to such malignant poisoning.
