MIA, reportedly born Kunii Hinano in Tokyo, is a Japanese singer and performer in Baby DONT Cry. She is one of the two Japanese members, alongside Kumi, who joined the two Korean members to create the four-member P NATION act.

During the March 24, 2026 album press showcase, Mia recalled the challenges of moving away from family to pursue music in another country. Her comments connected the nostalgia and growth of Bittersweet to her own experience of training and preparing to debut in South Korea.

Mia’s vocal performances appear throughout F Girl, I DONT CARE and the five-track AFTER CRY EP. The prerelease Shapeshifter explored the idea of refusing to fit into one fixed identity, complementing the group’s more reflective lead track.

Her individual appearances in showcase photography and interviews are documented, but no independently released solo album or official personal social account has been authenticated. Group music videos belong on the group’s official video page.