It's because the antidote can be destroyed easily without any time cost. That's why they're worried Gu Yanjing wants to go.
But it's too dangerous.
None of them want Qiao Yuxian to get hurt, but they also don't want Gu Yanjing to be sent to his death.
Gu Yanjing is smart and resourceful, it's not that they don't trust him.
But he's facing his own father, trying to save his own wife.
Chu Zhengran and Lu Mengyi have witnessed his madness when confronting Gu Zhengyu.
A person with such indifferent emotions loses all control when facing Gu Zhengyu.
The more he loved him in the past, the more he hates him now. This hatred is even doubled.
Gu Zhengyu personally shattered all the love he had for him, crushed the warmth of fatherly affection nurtured for over a decade, making him realize everything over those years was a hypocritical disguise, letting him know everything he obtained was a lie.
