Based on the search results, here are some recommendations for system flow store novels:
1. "書(shū)籍供應(yīng)商" by 胖乎乎的河馬: This novel tells the story of a magical bookstore in a small town on the border of the Da Chu Empire. The bookstore opens at 9 am and closes at 5 pm, and the books can only be read and not taken out. The cost of reading is calculated per hour in a currency called "靈晶".
2. "主神的黑店" by 流年往事: This novel revolves around a system that starts distributing level one gift packages, which increase the probability of obtaining high-level items by 50%.
Unfortunately, the search results do not provide more specific recommendations for system flow store novels.