My Retirement Home Is Secretly a Sword Sect

Tasked with reviving his ancient sect, a sword prodigy disguises himself as an eccentric charlatan, turning a rundown retirement home into a secret academy. But when he tries to reunite with his long-lost family, their manipulative adopted son turns them against him. Dismissed as a fraud, he unleashes his peerless blade to shield them from deadly enemies. As dark forces close in, can he sever toxic ties and reclaim his rightful place as the ultimate swordmaster?