Talk:Tsuguko/@comment-43970560-20191105231344/@comment-35873778-20191105232738

He was technically a Tsuguko along with Kaigaku under Jigoro (retired Thunder/Roaring Pillar) since the two were trained with the prospect of being co-pillars/successors. I'll see if I can find a reference from the manga.

Edit: Yep, Chapter 144 dialogue says that the two were meant to be joint successors.