When Lu Fengxuan asked this, there was almost a certainty in her tone.
However, Yu Chiyin fell silent for a moment before nodding lightly at her, "Hmm."
"The mastermind behind the kidnapping case that year had a personal grudge against Father. After he kidnapped me, he injected a mild poison into my body. It was not lethal, but this poison would slowly invade the bloodstream, gradually numbing a person's nerves and consciousness, eventually leading to an unconscious death during sleep."
His explanation matched the symptoms mentioned by Old Wen, and Lu Fengxuan believed it without any doubt.
"This scoundrel is too vicious! He had a personal grudge against Father, and he could have directly confronted Father, but he took his revenge on you, an innocent person. Such a person is both weak and diabolically cunning, simply a scourge on society!"