: The song was originally written and produced by Ayase (the composer of YOASOBI) for the Japanese YouTube channel THE FIRST TAKE . It features the vocals of three prominent female artists: milet , Aimer , and Lilas Ikuta (who is the vocalist "Ikuta" of YOASOBI).
: Released as a digital single on December 17, 2021, credited to milet × Aimer × Lilas Ikuta.
: The title Omokage (面影) translates to "vestige," "trace," or "remnant" of someone's face. The lyrics explore themes of connection, the lingering memories of loved ones, and finding happiness in the small, shared moments of life.