si_ku (born March 3rd, 1991) is an artist, singer, and producer from Tochigi, Japan. She has been the artist for most of Kikuo's works since 2011.
History[]
Early Works with Kikuo[]
She has been the artist for most of Kikuo's works since 2011. She is most known for her artwork, featured on the cover of the albums Kikuomiku- Kikuomiku7.
Ikitama[]
On December 31st, 2013, si_ku and Kikuo collaborated on an album which they co-produced. In 2015, it was announced that the duo would be called Ikitama. They continued to release albums under this name until 2016, with San-mai no Shashin wo Mita Hi ni wa (3枚の写真を見た日には) being their latest album.