It is the IInd premium edition of NFT that is going to be listed with only limited supply on opensea.
Chillax Emojis are a collection of emojis which are "Chillax".
A Premium edition of Chillax Emojis(The Rarest Ones) will be listed after every 10 NFTs with only limited supply.
Giveaway is also going to be live soon on twitter.