Three years was far too long; even though the number could continue to exist due to that eerie text message, the mobile phone it was associated with might encounter accidents.
Mobile numbers that are not paid could be canceled, phones could be accidentally damaged, or simply not using the same card anymore could lead to the inability to contact that number again.
Thus, Wen Wen's clue ended there.
He rubbed his forehead in distress, "To continue the investigation, I can only interrogate that Succubus... But she has always been squatting at home, exploiting her husband. It is doubtful she knows more than Wang Zixuan. Relying on her seems unreliable.
"First, let's lock this guy up in the Sanctuary to prevent him from erupting and harming people at any moment."
If Wen Wen were cruel enough, he could have just locked these people in the Sanctuary and waited for them to become Disaster Level demons, then righteously use their abilities.