The little pharmacy in troubled times

Tang Lejun, a post-apocalyptic woman nicknamed "Poison Doctor", once passed through the books and became the green tea heroine in the book.
The original person was full of tea fragrance and acted sinisterly. He was kicked out by the heroine of the original book and returned to his hometown in the countryside.
Tang Lejun took inventory of his family's assets: an old house, an acre of land, a medicine shop, and several taels of silver.
She smiled. She had the wood power, herbal medicines were planted, and medicine shops were opened. Whoever wanted to do it would do it in the control group, but she didn't do it anyway.
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New rules for drug stores: 1. The medicine is good; 2. The price is expensive; 3. The poison is not suitable, and the medicine of tiger and wolf is not suitable.
When the shop just opened, the heroine of the original book publicly announced that she had driven Tang Lejun and her brother out of the Tang Clan, and that the Tang Clan would not bear any consequences for the drug store.
Tang Leyun happily accepted, so that his family would not have to bear any responsibility to the Tang Clan.
Three months later, the drug store became famous and the rich and powerful came in droves.
The heroine of the original book also came. Not only did she want to seek medicine for her grandmother, she also wanted to recruit Tang Lejun to her army.
Tang Lejun sneered: Who do you think you are?
The heroine of the original book said: You will regret it!
In the original book, the yandere male protagonist who was supposed to be asking for what the heroine in the original book didn't want said, "Get out!"