C137 Becoming Sworn Brothers!

Zhang Heng watched the pair with a puzzled gaze, unsure of their intentions. He managed a smile that was both awkward and polite. "In truth, you both have done Zhang Heng a great service, for which I am grateful. It is I, Zhang Heng, who should be thanking you."

"If you don't mind, and are willing to become my sworn siblings, how could I, Zhang Heng