On January 12, 2023, TWICE announced that members Momo, Sana, and Mina would be releasing a new song titled "Bouquet" as an insert song for the Japanese drama Liaison -Children's Heart Clinic-, which premiered on January 20.[1] On January 21, it was announced the song would be released digitally on the 25th.[2]
On the midnight of February 7, the opening trailer and photos for Mina were released.[3] This was followed by Sana on the 8th,[4] and Momo on the 9th.[5] At 4AM JST on the 9th, the opening trailer and photos featuring all three members were released, announcing that MISAMO would be making their debut on July 26, 2023 with their first mini album, Masterpiece. The album would consist a total of six tracks including the previously-released song "Bouquet".[6]