@Introvert please, where are you reading the novel, I can't find it at all

@Miowlovers here's the reality of his last life:
An illegitimate child
No one to train him=seen as talentless
Young age=naivety
Expelled from the family early=lacks knowledge about certain things, including poinsons. 
Since the poison is undeceted, and no one cares to look at his mana pathways before he was underperforming, there was no way to detect it.

@Eden Gremory not if you take into consideration that it was a skill that was cultivated for 30 years, before being transferred to the MC.

@Sam come on, as much as we might enjoy a given story, the health of a human being trumps our hobby. Have some conpassion.

Also, they earn money by delivering these episodes, maybe you can take a 4 to 5 months long unpaid vacation, but most people in the world can't.

It is the hight of privilege to be annoyed by someone else experiencing health issues.

@Hanyar yeah, I hated all the manhuas that use this trope, because they all end up having SA, and poorly written female characters with rediculous boobies