Such bullshit.
Ok I acknowledge that someone lying about being a famous cook is not deserving death in today's society. But claiming that you have cooked for the king/emperor in ancient times would 100% get you executed if it was outed as a lie. I also realize that this a "feel good" manhwa, but giving away your wish from one of the most powerful people in the nation for such bullshit is not ok and not feel good.
Now I kind of wish that mc get in a situation where the poison king could save him, but he refused to do it because there is nothing in it for him, and our mc dies, and the manhwa ends. Yes I'm salty about this.