Chen Meng'er used her superior hearing to search carefully. After roughly confirming the hiding place of these ninjas, Chen Meng'er opened her eyes.
"They are hidden deep enough. It's no wonder that the Hongbei family's ninjutsu technique makes people so wary," Chen Meng'er said to herself as she jumped onto the wall.
Chen Meng'er stood on the wall and looked at the mansion in the night sky with a determined smile on her face. At some point in time, many silver needles with added materials appeared between Chen Meng'er's fingers.
Chen Meng'er closed her eyes again. Her left ear moved, and the silver needles in her hand flew out. Then, her right ear moved, and the silver needles in her right hand flew out as well.