User blog comment:Kaido King of the Beasts/Chapter 904: The Revolution Will Not Be on the Loudspeaker/@comment-25654036-20180511122707/@comment-25400375-20180511123406

Koala is the Assistant Fishman Karate Instructor after Hack and Inazuma is a close confidant to Ivankov as he is to Dragon, so it was probably a given.