Mortals Cultivating Immortality: I Can Contact Han Paopao on My Mobile Phone

Li Fan, a modern social creature, accidentally discovered that his second-hand mobile phone could contact Han Li and Old Demon Han in the world of mortals cultivating immortals across dimensions. As a result, a bold plan brewed in his mind: exchange modern knowledge for resources for cultivating immortals, and use technological products to help Han Paopao cheat all the way! With Mathematics and Chemistry on my left hand, and Yellow Maple Valley on my right hand, let's see how I, Li Fan, join forces with Old Demon Han to stir up the turmoil between the two worlds and realize my own mortal counterattack!