He transmigrates to the ninth year of the Wude era in the Tang dynasty and becomes the crown prince's eldest grandson, only to discover that his father is Li Jiancheng?
The key is that tomorrow is the day of the Xuanwu Gate Incident!
With only one day left in his time as crown prince's eldest grandson, Li Chengzong gives it careful thought and decides to seize the throne!
“Grandfather, I now command the armies of the realm. If I ask you for one thing, you won't refuse me, will you?”
“Father, you're still young. Focus on how to be a good crown prince instead of constantly plotting to take the throne from me. If you go down the wrong path, you'll ruin yourself!”
“Second Uncle Shimin, forgive my bluntness. The throne is a deep pool, and I'm afraid you can't handle it, so I'll take it myself!”
“Fourth Uncle Yuanji, have you ever heard the story of Cao Cao?”
Watching Li Chengzong in imperial robes, seated on the Dragon Throne and receiving tribute from all nations, Li Yuan, Li Jiancheng, Li Shimin, and Li Yuanji were all left dumbfounded.