Haku (Korean: 하쿠; Japanese: ハク), formerly known as Hikaru (Korean: 히카루; Japanese: ひかる), is a Japanese trainee and model under YX LABELS. He placed fifth on the reality survival show Oen-High, making him a member of the debut lineup of the upcoming boy group aoen. He is a former member of the pre-debut boy group 24kumi. He is also known for participating in the reality survival show &AUDITION - The Howling -.
