"Join the Assasin's Guild." Vishnu's reply almost stumped Hayward. He didn't expect something like that. Assassin? Is this brat telling him to become an Assasin? Even though he had done Assassination missions for the sect as a darkness element cultivator, he had never thought about making it his profession. Though he liked the face his target makes when he assassinate them. The look in their eyes when they realize life seeping out of their body somewhat gives him adrenaline. 'Am I being crazy? Nah! Surely not.'
If Vishnu heard the talk Hayward is having with himself he might think it is his long-lost brother maybe. But fortunately, that didn't happen. The more Hayward thought the more it seemed feasible to him. Vishnu also didn't disturb him. Letting him think things through.