This morning at 11 AM, when the Seraph game server opened, I entered Pancake on time and added 5000 USDT of liquidity to the Seraph/USDT liquidity pool.
Then I staked the NFT of this liquidity in the Actpass wallet (which means that the 5000 USDT of Seraph + USDT tokens for this season cannot be moved).
By 3 PM, just 4 hours later, there were already 171 Seraph tokens in staking income in Actpass.
Both the Seraph official website and the Actpass wallet have detailed explanations for adding liquidity to token pairs, so those interested can take a look.