Demon slayer kaigaku’s first appearance YouTube

Kaigaku became the Upper-Rank Six by replacing Daki and Gyūtarō when they died. A former Demon Slayer, he was Jigoro Kuwajima's eldest disciple before becoming a Demon. Like Zenitsu, he struggled to control the Thunder Breathing Style and failed to perform the first movement, although he was a better disciple than him.. Appearance As a human, Kaigaku is a fit young man with black hair and turquoise eyes. After becoming a Demon, he gains four black, flame-like markings on both sides of his cheeks, fangs, pale skin, and pointed ears. His eyes receive the kanji of Upper Rank (上 じょう 弦 げん Jōgen?) and Six (陸 ろく Roku?). Kaigaku is usually seen wearing a black kimono with a blue obi over his.

First Appearance: Tomokazu Sugita Japanese VA: Yoshimasa Hosoya Kaigaku was a Thunder Breathing user, just like Zenitsu. In fact, he was actually a highly respected senior who had helped Zenitsu a.. Kaigaku (かいがく) is a male character in the manga series Demon Slayer: Kimetsu no Yaiba and its derivative works. He is the senior disciple of Zenitsu Agatsuma, the new Upper Rank Six of the Twelve Kizuki, and was once a successor to the Thunder Breathing style. Kaigaku first appears in Chapter 34 of the manga, titled "The Resilient Blade," and in Episode 17 of the anime, where he is.