XEED (씨드) is a three-member boy group under Nature Space. Originally four, they debuted on December 1, 2022, with the mini album Dream Land. On July 17, XEED revealed a teaser for their second mini album, 'Blue.'

Blue will be released on August 1, 2023, at 6 pm KST. They dropped a teaser video on July 17, and on July 18, the scheduler. On July 22, 2023, they dropped their second trailer for their upcoming album 'Blue". Through this trailer, you see 5 silhouettes; according to their fan cafe, 2 new members will be revealed for this comeback!

On July 26, 2023, the first new member was announced; as many have guessed, it's none other than Yonghyeon, the former main vocalist of TST, also known as UO. UO debuted under Nature Space as a soloist with his mini album Restart on April 13, 2023.