Tatsuya Kitani

Tatsuya Kitani (キタニタツヤ) (born 28 February 1996) is a Japanese singer-songwriter, lyricist, composer, and arranger. He is the bassist of the three-member band "sajou no hana". He was also active as a Vocaloid producer under the name of "Konnichiwa Tanita-san" (Hello Tanita-san). The affiliated office is Smile Company, and the affiliated label is Mastersix Foundation in Sony Music Records. His official fan club is "Club Unreality".