Reason why zenitsu was calm: he was meditating for over a day without eating which kept him calm) btw there will no longer be episodes it will be split into movies also he was meditating because his old trainer commited suicide due to zenitsu's training teammate became a demon Edit was because i forgot to add that part of information in
Yeh, the grandpa wanted Zenitsu and Kaigaku to be the joint thunder Hashira as Zenitsu only mastered form one while Kaigaku mastered all but form 1. But Kaigaku went and became a demon and grandpa offed himself of shame which is why Zenitsu is so angry as he loved Gramps
