Halla, also known as "the planet that should not exist", is an exoplanet with a dark past, she is basically immortal, she is also sadistic, scary, sinister, and big, she is slightly bigger than Jupiter, and enjoys killing small planets, but when someone shows superiority she gets submissive and scared Even if she is a feelingless monster, she still loves and cares about her star, which is also her father, who is dying slowly She has long dark green hair, broken clothes, black eyes with red iris