HIKAKIN

Hikaru Kaihatsu (開發光), most notably known as HIKAKIN (ヒカキン) is a Japanese YouTuber who would compete in SASUKE. He is known for being one of the most subscribed YouTuber in Japan, tallying over 10 million subscribers across his multiple channels.

HIKAKIN would be invited to compete in SASUKE 39, as multiple videos in the lead up to the tournament would include him participating. In his YouTube Channel, it is known that at the time, he would receive guidance by Yamada Katsumi in various trainings in obstacles. During his First Stage run, he would have a slow pace in clearing the first two obstacles, but would unfortunately overshoot the landing of the Silk Slider, falling into the water.

Trivia

 * HIKAKIN is known for clearing 17 boxes of Monster Box in one of his videos.
 * With him participating in SASUKE 39, he is the fifth full-time YouTuber who would compete in SASUKE.