Hikaru

• Hikaru began training in Japan long before her K-pop debut. She attended Avex Artist Academy in Fukuoka, where she developed her singing, dancing and performance abilities.

• She participated in the Japanese children's performance group MELTY. The experience gave her opportunities to perform publicly while still young.

• Hikaru was a member of the Japanese duo +GANG. She performed alongside fellow young trainee RION under Avex Artist Academy's Fukuoka branch.

• She used the nickname Hikarun during her early performing career. The affectionate variation of her name was associated with her pre-debut activities in Japan.

• Hikaru trained in the same development system associated with XG. Before joining Girls Planet 999, she spent time training under XGALX alongside performers who would later debut in the Japanese girl group XG.

• Her connection to XG predates Kep1er's debut. The two groups developed separate careers, but Hikaru's early training remains an interesting connection between their histories.

• She represented Avex Artist Academy on Girls Planet 999. Her Japanese training background distinguished her from contestants who had trained primarily under Korean entertainment companies.

• Hikaru was selected as the Japanese center for the Girls Planet 999 theme song. She represented J-Group during the performance of "O.O.O (Over&Over&Over)."

• She entered Girls Planet 999 with the J01 ranking. This placed her first among the Japanese contestants during the show's initial evaluations.

• Her introductory performance featured BLACKPINK's BOOMBAYAH. The stage showcased her rapping, powerful choreography and confident facial expressions.

• Hikaru received first place in the mentors' initial Top 9 evaluation. Her strong first impression established her as one of the competition's leading contestants.

• She participated in EXO's The Eve performance. The stage demonstrated her ability to adapt to a mature and demanding dance concept.

• She performed Meghan Trainor's No Excuses during the combination mission. The performance emphasized dance technique and coordination.

• Hikaru participated in the original-song mission performance of Snake. The powerful concept suited her confident stage presence and sharp choreography.

• She remained in the overall Top 9 during the main elimination rounds. Her consistent rankings demonstrated strong support throughout the competition.

• Hikaru finished seventh in the Girls Planet 999 finale. Her placement secured one of the nine positions in Kep1er's original lineup.

• She received 713,322 points in the finale. The result confirmed her successful transition from a Japanese trainee to a member of a multinational K-pop group.

• Hikaru is known for powerful facial expressions during performances. She frequently changes her expressions to match the rhythm and emotional tone of the choreography.

• Her dancing emphasizes sharp movements and strong musical timing. These qualities are particularly noticeable during rap-focused and hip-hop-inspired choreography.

• She has a distinctive rap delivery. Her rhythmic pronunciation, confidence and expressive tone help her stand out during Kep1er's rap sections.

• Hikaru's height contrasts with her powerful stage presence. Although she is approximately 155 cm tall, she is known for commanding attention during group performances.

• She has identified relaxing in hot springs as a hobby. This interest was included in her official Girls Planet 999 contestant introduction.

• One of her self-described specialties is eating deliciously. The playful answer appeared alongside rapping in her survival-show profile.

• Her Girls Planet 999 introduction emphasized her smile. Her contestant keyword described her as someone who wanted to make a strong impression through rapping and a healing smile.

• She has been associated with the ESFJ MBTI type. The personality result appears in published profiles, although MBTI results can change over time.

• Hikaru is one of Kep1er's Japanese members from its original lineup. She debuted alongside fellow Japanese member Mashiro, who later departed in 2024.

• She has experience performing in both Japanese and Korean. Her career has involved adapting to different languages and entertainment markets.

• Hikaru participated in Kep1er's Japanese music releases. Her native-language skills have been especially valuable during the group's promotions in Japan.

• She continued with Kep1er after the group's original contract period. Hikaru remained among the seven members who continued promoting together in 2024.

• She remained with Kep1er following its transition to six members in 2026. Her continued participation reflects a career that has grown from Japanese trainee performances to international K-pop activities.