Taoist Tianyu's expression was normal, with just a slight smile on his lips, watching his disciple return once again. He still sat cross-legged on the cushion, looking Su Yu up and down.
Taoist Tianyu's face was abnormally pale, and he said calmly, "It took over a hundred years to return this time. Have you had a breakthrough?"
Su Yu walked forward and waved his hand, producing a jade bottle in his grasp.
Inside the jade bottle were the nine drops of heavenly marrow spirit liquid he had stored.
Su Yu handed the jade bottle to his master, saying, "I've had a bit of a minor breakthrough, but that's not important. Thankfully, Master, you didn't stubbornly resist and knew to go into seclusion to heal after being injured."
Taoist Tianyu looked at the heavenly marrow spirit liquid in the jade bottle, lamenting in his heart: "The mythical beast secret realm has produced some heavenly marrow spirit liquid over the years, but it's far from enough when it comes to the need in battle."
