Starting Out as the Tang Prince, Li Er Is Ambushed

A miserable modern-day programmer works so much overtime that he ends up joining the transmigration crowd. Ha! He gets a big one right from the start: he's become Li Shimin's son! What is a man who's never studied history supposed to do with that? Luckily, with a System in hand, the world is his! He crushes the Eastern Turks, sweeps through Tuyuhun, campaigns east against Goguryeo, and defeats the Xueyantuo! Behind every one of Li Shimin's victories stands his son, Li Ke! After watching the person destined to rule take the throne, Li Ke knows when to bow out. He chooses the path best suited to him and smiles as he brings this life, lived without regrets, to its close!