> For the complete documentation index, see [llms.txt](https://docs.syfu.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.syfu.io/manekineko/circulation-loop.md).

# 6.6 Circulation Loop (Overview)

1. **Acquire**: Buy Common ($50), OG, or higher-tier models.
2. **Use**: Visit store → Check-in → Card payment → BIND.
3. **Earn**: Econ from Mini, EVT & Breeding unlocked at Prime.
4. **Maintain/Upgrade**: Lifespan recovery, enhancements (via EVT, items). Only 100% HP/lifespan NFTs can be listed on marketplace.
5. **Reinvest**: Breed to generate new NFTs → grow them → return to step 1.