In his previous life, if it weren't for Prince Qing drinking and causing trouble, and telling his mother everything, his mother wouldn't have known that he wasn't Emperor Hao's biological son. It was Emperor Hao who randomly found someone and did that kind of thing with his mother before she got pregnant with him. Emperor Hao was a benevolent ruler, but he was also despicable in the shadows.
It was also Prince Qing who had wasted his time drinking. His mother had also learned from Prince Qing that Ji Xiehui was actually Emperor Hao's man and that the Empress Dowager was actually at the Heavenly Spirit Temple... Wait, many things haven't been shared at this point…