Touch of darkness is a skill of the master's mental jewel that allows him to sense everything within a 100m radius. As long as he is within the radius, he will surely be able to trap his sister ruse. Ten minutes later, however, he realizes that she is too cautious. She will not attack him if he does not make a move. She has been with the army for many years. She can also use her heavenly energy to trap him. The teacher tells him that the enemy's attack is much larger than that of the purple dawn. He will use his touch of darkness to enchant his arrow with his heavenly energy. He is amazed at the power of the bow. He wants to see if he has caught her.