Kagirinaku Haiiro e Kagamine Rin Alt Vocal

Kagirinaku Haiiro e (限りなく灰色へ, Close to gray) is a song by Surii commissioned for the Unsatisfied Pale Color event. This song became playable on February 26, 2021. It is associated with the unit 25-ji, Nightcord de., and currently has 4 song versions in the game. Players can unlock this song for free by claiming it in the Present Box. A full length version of the SEKAI version was released on the Kagirinaku Haiiro e/ID Smile single on January 19, 2022. This song is from Project SEKAI COLORFUL STAGE! feat. Hatsune Miku