Dragon, Take Advantage of the Fairy Sister's Innocence and Trick Her Into Marrying You

He transmigrates into Duan Yanqing from Demi-Gods and Semi-Devils and suddenly finds himself a father. The unfortunate part is that his grown son won’t acknowledge him. He’s also severely disabled, nearly fifty years old, and has wasted decades of his life. He says he’s a member of the Dali royal family and that the brothers Duan Zhengming stole his throne, but everyone calls him delusional and says he’s dreaming with his eyes open. Faced with this disastrous start, nobody believes in him. They tell him that at his age, he should stop stirring up trouble and wreaking havoc wherever he goes. But he’s determined to reclaim everything that belongs to him.