```html
After lunch, Chu Zhiyuan decided not to go out in the afternoon, staying in the Prince Mansion to focus on training.
If Cheng Tianfeng lost his confidence, that would be good. If not, then before he leaves Yujing, strive for another match to completely crush him.
Therefore, one cannot relax and must continue the cultivation.
As he ate, he constantly pondered the matter of the concubine getting poisoned.
Using poison inside the Imperial Palace, the person who did this has either great courage or is extremely foolish, or they have some reliance.
Fools in the palace have long become skeletons.
I'm afraid it's the latter.
So, what do they rely on?
Even if it's a favored concubine, the Emperor cannot tolerate such actions, as it's a taboo matter.
So who could it be?
Besides favored concubines, who else in the palace has such courage?
It's truly baffling.
