Climb a Star

Suddenly caught up in the power struggle of the gods, the chosen Hwiyoung attempts to escape from the heavens in order to return to her younger brother, who is left behind in the mortal world.
Amidst the chaotic celestial realm, where some gods seek to protect her, others wish to destroy her, and some wish to use her, Hwiyoung ultimately decides to confront her fate head-on.

Original Webtoon:
KakaoPage, Ridibooks, Bomtoon, Lezhin, MrBlue, Naver Series

Official Translations:
Japanese, French

Note: 일월성신 is part of the Irwolseongsin (일월성신과 천지신명), which is a pair of a Sun, Moon and Star God.