The Hidden Power of a Fool

The Locke Clan has Adrian Locke, the chief's son, down as a fool with nothing in him. For ten years his days have gone to his adopted sister. Every rare cultivation resource that comes into his hands he sends on to her, and his own training goes nowhere. What none of them knows is that a Return System works inside him, and each thing he gives her comes back to him as strength. His power has been climbing the whole time without anyone able to see it. His sister has grown into a prodigy the clan treats as a goddess, and next to her he is called trash. The gap between them widens year by year. People inside the clan and outside it laugh at him for the way he chases after her, and he keeps sending her whatever he gets.