On the afternoon of December 27th, Yohan Kim unveiled the promotional plan for his solo mini-album "Illusion" through his official SNS.

According to the revealed plan, Yohan Kim will release the concept photos of the ‘Chic-A’ and ‘Chic-B’ versions, on December 28th and 30th, respectively, starting with the album pre-sale at 5 PM on December 27th. The tracklist will be released on December 29th, and the A-version of the lyric teaser will be released on December 31st.  On January 1st, 2nd, and 5th of next year, three versions of visual shots will be released in turn, and the concept photos of ‘Dramatic-A’ and ‘Dramatic-B’ versions will be unleashed on January 3rd and 4th, respectively.

In addition, the title song's music video teaser will be revealed on January 6th, the highlight medley, the B-version lyric teaser, and the poster will be unplugged sequentially from January 7th to the 9th. And various teasing contents will fill the fans' waiting until the comeback day on January 10th.