Riko Azuna is an anime song singer and songwriter who has been in charge of songs for many TV anime such as "Made in Abyss", "The Otome Game World is a Tough World for Mobs", and "Hakozume: Police Box Girl's Counterattack". will release their long-awaited new single, their first in about 6 months since their previous album "Azu is". Her lead song "Silver Floworld" is a rock ballad with an edgy guitar sound, and draws attention to her singing ability, which powerfully expresses the delicate feelings of the changing seasons and conveys an emotional story.The C/W song "Forever" is the first song that Riko Azuna wrote and composed by herself at the beginning of her career, and it has been arranged to make the most of the acoustic guitar tone, and this is the first time it has been made into a sound source. All three songs in total were written and composed by Riko Azuna, and with her passionate singing voice and acoustic guitar-centered sound at the forefront, they fully capture Riko Azuna's charm as a singer-songwriter.