e5 is a rap singer-songwriter born on September 2, 2003, from Kisarazu in Chiba Prefecture and now active in Tokyo. After first sharing her music online in 2020, she began releasing tracks officially from 2021. Deeply influenced by Vocaloid, she became obsessed with vocal editing and Auto-Tune, and found creative inspiration in Hyperpop and Digicore, which led her to experiment with different ways of building songs, sometimes starting directly from the beat. She has released multiple albums and singles over the years, including albums Cassette (2021) and Mode Pop (2025) and singles like "Luv in Grave" (2023) and "Spider Silk" (2025).