> For the complete documentation index, see [llms.txt](https://doc.sololeveling.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sololeveling.space/user-guide/how-to-sl-u.md).

# How to SL:U

<figure><img src="/files/mwsOmqcWtXlxbwV0TCjo" alt=""><figcaption></figcaption></figure>

### Gate Entry and Rewards Process:

1. Users can **purchase Gate Keys** from the Shop **that match their current Hunter Rank**.
2. Gate Key **can only be used to enter gates that correspond to the users’ Hunter Rank**.
3. Upon completion, users **receive a random box matching the rank of the cleared gate**.
4. **Opening the Random Box contain Monster Cards and Essence Stones**, with **higher ranks providing better rewards**.
5. Users can check their obtained Digital Collectibles in both their Collection and Inventory.

<figure><img src="/files/8I3ffTEHA9lxsIbwX0Cl" alt=""><figcaption><p>Rewards by Random Box Rank</p></figcaption></figure>

※ Collected Monster Cards can be **used for various leveling activities, including Combine, Upgrade, and Recycle**.