Datang + Time Travel + System + Shuangwen + Li Shimin + Li Yuan + Li Jiancheng
What should I do if I meet Li Shimin across the Tang Dynasty?
I can't escape even if I want to, but I'm the prince, Li Shimin's nemesis, the eldest brother of his Xuanwu Sect who killed him!
Fortunately, I have a system in hand, so I can survive in the Tang Dynasty with ease.
When Li Shimin met, he decisively abdicated the throne and became a leisurely prince, and followed Li Shimin to enjoy the prosperous Tang Dynasty!
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