On December 26, 2016, the group began a fundraising event through Makestar in order to finance their next album.

[1] Stellar Into the World was digitally released on June 27, 2017, through several music portals, including MelOn, and iTunes, for the global market.

[4][5] The group held their first "comeback stage" on SBS MTV's The Show on June 27, 2017, performing their title track.

"'Archangels of the Sephiroth" was released as the title track in conjunction with the EP on June 27.

The EP also debuted and peaked at number 13 on the US World Albums chart, on the week ending July 15, 2017.