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September 2017: DebutEdit
On September 9, a promotional image was released on Loona's social media accounts with the text "ODD EYE CIRCLE" confirming that there would be three members and the name of the unit. Following on September 11 was an image of all of the girls together before solo teasers of the girls were released starting with Choerry on September 12 and finishing with Kim Lip on September 14. On September 15, an image was released revealing all of the tracks on the mini-album, as well as the title of Mix & Match.
A series of teasers were released to the public afterwards to connect with fans and inform them about upcoming events such as livestreams.
October 2017: "LOONATIC" (English Version) and Repackage albumEdit
On October 17, a teaser was posted onto Loona's social media platforms to inform fans that an English version of the song "LOONATIC" would be released for international fans on October 23, followed by a teaser for the repackage album Max & Match the next day. Individual teasers went from Kim Lip to Choerry and were released starting October 19 and ending October 21. They made their comeback on October 31.
|Kim Lip (김립)||Leader (Odd Eye Circle) & lead vocalist||Owl||Red|
|JinSoul (진솔)||Lead rapper & lead vocalist||Blue Betta||Royal Blue|
|Choerry (최리)||Vocalist||Fruit Bat||Purple|
|Mini-album||Information||List of Songs|
| Mix & Match|
September 21, 2017
|Album||Information||List of Songs|
| Max & Match|
October 31, 2017
| "LOONATIC (English Version)"|
October 23, 2017
| To view the Loona Odd Eye Circle gallery, click here.