He actually didnt believe it at first, he is from modern world like us after all, but then he met his friends…
Ep.14 was hard to watch because it was just ML arguing uselessly against everyone else. That's poor writing by the script writer. We can find reasons as viewers but it boils down to a poor episode composition.
Actually this is more Classic wuxia novel because it's slow and follows the same format of a young hero rising to avenge an injustice. New Age wuxia are very different. But I think this is just a poor script. Cheng Yi is a good actor and he's done excellent work in his previous dramas.
But i'm wondering what else he could do to prove it? He has actually 3 witnesses but this stupid brother throw…
If he couldn't think of a way to prove it then he should have lied or kept quiet. It was embarrassing to watch him keep insisting that he was right like a little kid😅
Ep.14: so ML's whole argument is based on "I said so" to make people believe his accusations against the Sword King? That's weak and it's no wonder the other characters don't believe him.