Kim Ji-an

Lightsum is a South Korean girl group currently active in Japan formed by Cube Entertainment. The group is composed of six members: Sangah, Chowon, Nayoung, Hina, Juhyeon, and Yujeong. Lightsum was originally an eight-piece ensemble; members Huiyeon and Jian departed the group in October 2022. The group debuted on June 10, 2021, with the release of their debut single album, Vanilla.

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