Transmigrated as the Legitimate Son of the Emperor's Greatest Enemy, a Prince of Another Surname

Su Huai'an wakes up as the legitimate son of the Prince of Zhenbei, a powerful frontier official and a major threat to the aging emperor. With 3,655 days until everyone gets a bad ending, watch Su Huai'an untangle the truth while slacking off and struggling to stay alive. Wait, his archenemy is offering an olive branch, the scheming prince is loyal to the death, and even the young prince clings to his leg, sobbing, “I beg you, Lord Su, take the throne of regent!”