Kang Du Na, simply known as Duna, is a South Korean singer and member of the girl group CSR or Cheotsarang (which literally means "First Love") under Pop Music. The group is composed of 7 members who are all born in 2005. Her ole model is IVE’s Wonyoung. She made her debut on July 2022 with the EP "Sequence: 7272".
(Source: Korean = Namu Wiki || Translation = MyDramaList)