SANGAH is one of LIGHTSUM’s primary rap and dance performers. Her clear rhythmic delivery and energetic expression create contrast against the group’s bright vocal arrangements. During the 2026 Japan debut project, she joined the six-member lineup bringing a dance-focused edge to the new kawaii-inspired performances.

SANGAH participated alongside CHOWON and JUHYEON in the group’s first unit song announced for January 2026. This collaborative unit recording is different from an individual solo debut.

LIGHTSUM debuted on June 10, 2021 and reintroduced its six-member team through the 2026 documentary Re:Idol and Warner Music Japan’s mini-album Re:idol. Her work should be understood in the context of the group’s collective music and international activities.