How Could I, a Tenant, Become the Lord of the Immortal Realm?

Xu You once traveled through time and became a tenant who couldn't afford the rent and was about to be sold into slavery. At this time, he found that he could enter another world. This world is called the Immortal Realm, and it contains great dangers. Xu You found that he could bring the resources back to his barren world. So he brought back all the spiritual stones, spiritual veins, martial arts and weapons, and formations and weapons and medicines! Preach and resolve doubts, teach disciples. Many years later, Xu You eliminated the crisis in the Immortal Realm and looked back at the countless monks - ninety-nine percent of them were his disciples!