Family Cultivation of Immortality: Starting from the Discovery of Spiritual Spring

"Teacher Lin, students are going to practice the technique of combining a thousand swords into one. Where do the flying swords come from? It is too easy to break if they are made from spiritual bamboo." "Don't worry, we can use industrial methods to make spiritual gold sand, and then mass-produce the Vajra Flying Sword!" "Teacher Lin, the elixir is not enough again!" "It doesn't matter, we will increase the development of Lingquan, and then we will build a large-scale production workshop for elixirs... Ah, let's build a small-batch pilot workshop first, with an annual output of 1,000 kilograms."