Many coffee shops sell bread or cakes, and if they don't sell out by the end of the day, they discount them in the evening.
When Bi Fang first came to this world, the original owner's parents had gone bankrupt due to a failed investment, leaving three generations of savings reduced to nothing, and they chose to leave this world. The original owner was also unable to recover, sold everything that could be sold at home, and even moved into a small, broken-down rental house.
This meant that when Bi Fang first arrived, his pockets were cleaner than his face, so he thought of this and decided to try his luck at a nearby coffee shop. Surprisingly, the staff was exceptionally polite, and almost gave him the unsold items at a half-price deal.
Now that he was making money, Bi Fang wasn't the sort to forget kindness, so he remembered the three little cats in the coffee shop—one tabby, one ragdoll, and one big orange cat—and thought about bringing them some cat food.