yamitsuki's 6th single! Feat upsilon GALS, it's been about a year and a half since the previous release "Rolling Thunder Girl." The long-awaited second release is finally here! This time, Soruto Sato from upsilon GALS also participated in writing the lyrics. She contributed to writing the lyrics for each member's singing part. yamitsuki : A creative unit consisting of YouTuber Akecharu and composer Zero. upsilon GALS : A popular YouTuber group made up of four members: Kappa-chan, CONOMI, Soruto Sato, and LiLi.