I Am a Useless Son-In-Law, so It Makes Sense for Me to Have Hundreds of Millions of Medical Skills.

At that time, he was devoted to seeking Taoism, but his wife committed suicide in order to fulfill his Taoist aspirations. But her sacrifice back then did not fulfill his path until... When he met the girl who was just like his wife, he did not hesitate to lower his status and moved into his wife's house. He suffered all the cold eyes and humiliation, and relied on his wife's protection to survive. Looking at his wife's haggard face, he decided to take a different path in this life. It turns out that his disciples are all over the world, some dominate the temples, some are extremely wealthy, and even his former servants are respected by thousands of people... You have always protected me despite all the grievances, then I will use this power to protect you for the rest of your life!