After Turning into a Useless Person: Take a Male Protagonist as a Bodyguard

Jun Luan, a thousand-year-old peerless genius, once went out for training, but a bastard inexplicably took away her spiritual seed. A genius turns into a waste. "You stinky man, you took away my spiritual seed, should you give me an explanation?" Someone coldly lowered his eyes and pretended not to hear. Soon after, he was forced to become Jun Luan's personal bodyguard...