The Crown Prince Regent

Lin Chengfeng transmigrates as the Fourth Prince of the Great Wu Empire. The moment he opens his eyes, he realizes he is in dire straits: inside the palace, a vicious empress is plotting to poison him, while his treacherous brothers scheme against him; beyond its walls, an enemy princess and fierce barbarian armies are watching hungrily. Faced with such a predicament, Lin Chengfeng has only four words for it. Have fun first, figure out the rest later!