Yep. Kubo mentioned it in the 'Welcome to the Madness' Manga

Well, all I can say is Juichi Suwabe is TALENTED AS F*^K!!😍❤ I watched another anime of with him called Sarazanmai and HE WAS AWESOME!!!😍🤩😍🤩😍🤩

(He was Keppi btw)

That poor boi 😢