As a producer, keyboardist, with his melodic cut-up techniques and catchy and mysterious melodies and chord structures. As a producer, keyboardist, "DÉ DÉ MOUSE", who has created many followers both in Japan and abroad with his melodic cut-up techniques and catchy and mysterious melodies and chord structures, and "maeshima soshi", a young music producer whose songs have been streamed more than 100 million times and have gained support not only in Japan but also on a global scale, have the collaboration EP of 7 songs will be released from "Lonely Girl" by "DÉ DÉ MOUSE" and "maeshima soshi"! "Sparkler Girl" is the first track from the EP, It is a sentimental and emotional song that combines the originality of the two artists, and gives you a sense of floating and a gentle flow of consciousness/time.