Invincible: Start by Kneeling Down and Licking Your Breasts

I am eighty years old, but it is the best age for me to practice Taoism. I am sixteen years old, have mediocre talents, and can hardly achieve anything. My grandma was being competed for by the Three Great Dao Palaces, so I relied on my grandma's relationship to barely get in. My breasts are rising to the top step by step, and I just broke through a year ago. My milk... Others rely on themselves, family, and chance to cultivate immortality, while I rely on my own milk to cultivate immortality. On the long road to immortality, all Mu Yuan has to do is lie down!