Young Skinny, a Japanese four-member rock band, formed in Tokyo on August 15,
2020. The band's lead, Kayayu, initially a solo singer-songwriter used social
media to recruit his bandmates. Gonzales, Ryouto and Shion joined the band.
Shortly after forming, they gained rapid attention by topping the Weekly Artist
& Songs Ranking on the music streaming site "Eggs" in December 2020. The band's
first demo, released in January 2021, sold out in just a minute, indicating
their rising popularity. Their momentum continued in February 2021 with the
release of the music video for "Sekai ga ...