Haru Nemuri (春ねむり) is a Japanese singer-songwriter and poetry rapper. She began her music career as a player of synthesizers in a band when she was 17 years old, and she suddenly began to perform as a poetry rapper at the age of 21. Since then, she has been Haru Nemuri and called herself as the singing ultimate weapon. After a few month beginning her career as Haru Nemuri, she performed at a Japanese summer music festival "BAYCAMP2016" as an opening act in September of 2016 even though she didn't release her official works.