Fukuoka-based 19-year-old rapper Has-ki has released a new single "Boost!!". Kitakyushu-based beat maker Gerardparman, who has been in charge of beats for Redbull RASEN, NF Zessho, SANTAWORLDVIEW, etc., participated as a producer. It is a work that sings his own unique sensitivity, conflict, and the spirit of trying to rise from adversity with a Hyperpop-style beat.