Gakuto Haruka is the youngest member and a vocalist in the boyband JAXX/JAXX. Hailing from Ehime Prefecture, Japan, he possesses distinctive orange hair and green eyes, standing 174 centimeters tall and weighing 55 kilograms. His birthday is August 6 and he has AB blood type. Haruka radiates an upbeat and optimistic demeanor, serving as the group's primary mood-maker who generates a cheerful atmosphere through his charismatic presence. He often engages in playful interactions and joking with fellow member Kanata Morinomiya. His interests include animals, baseball, and eating. Before joining JAXX/JAXX, he independently composed and uploaded original songs to social media platforms under the pseudonym "Haruka". Within the group, he contributes as both a vocalist and composer, emphasizing the spread of enthusiasm and positivity during performances and team activities.