Realiez (stylized in all caps) is the fifth Korean-language extended play (EP) (sixth overall) by South Korean singer and songwriter Kang Daniel.

First news of the project came on May 26, 2023 when Konnect Entertainment uploaded a teaser video onto their social media channels, entitled "Kang Daniel - Prequel".

[1] The sixty second video depicted a post-apocalyptic, dystopian-style desert car chase scene, followed by an unidentified person pointing a gun at a masked Kang.

[3] The EP's track listing and production credits were released on June 14, confirming the lead single's title, "SOS", [4] followed two days later by audio samples of all songs.

[10] The EP's lead single, "SOS", is an electronic-rock influenced track with arpeggio synthesizers, aggressive electronic guitar riffs and powerful drums.

[9] Realiez debuted at number five on South Korea's Circle Album Chart for the week ending June 24.