YOASOBI (stylized in all caps) is a Japanese music duo composed of vocaloid music producer Ayase and vocalist Ikura (幾田りら/Lilas Ikuta). The group has released four music videos, all of which are based on short stories posted on Monogatary, a website operated by Sony Music Japan, later also from various novels and book tie-ups. The name "YOASOBI" originates from the Japanese word 夜遊び, meaning "nightlife". Ayase, who is a producer of Read more on Last.fm