Longmen Mad Doctor

After ten years on the battlefield, Lin Yi returned as a king. He'd planned to use his power to protect the seven wonderful older sisters who had always doted on him, and give them a good life. But it turned out that his seven sisters had all grown into stunning women, each a heroine capable of standing on her own. Even though Lin Yi commanded an empire spanning thousands of miles, in his sisters' eyes, he was still the little brother who needed protecting...

Lin Yi: I need to find a chance to prove myself to my sisters!