Gunjou no Sekai is a Japanese female idol group, commonly known as "Aoseka." They debuted on December 23, 2018, following a member audition earlier that year. In 2020, the group gained wider recognition with the release of their second single, "Aozora Moment", which ranked first on the Oricon Daily Charts and ninth on the Weekly Charts. Despite member departures and lineup changes, they continued to evolve, welcoming new members and performing at major venues like SHIBUYA CLUB QUATTRO and SELENE b2. By 2021, Gunjou no Sekai held anniversary concerts and embarked on national tours. They released several singles, including "Kokokara", solidifying their reputation in the idol scene. However, in 2023, they announced their current lineup would end, leading to a final concert on December 23. In July 2024, the group announced their revival, scheduling their new lineup debut at Ebisu LIQUIDROOM in September, marking a fresh chapter in their journey. The members are Honda Tomoha, Fujiyoshi Yui, Tsuji Karin, Fukuhara Yuyuka and Kosaka Airi.