The fact that this episode Michinaga let Keiwa hit him because- technically the one who indeed kill Sara is him- BUT the one who started this was Daichi and Keiwa probably knows that [well I hope he does]
But because there's no Daichi around, and Keiwa emotion is getting the better of him at that scene, he needs to release his anger to someone. And Michinaga gladly take that punched for him- tbh he doesn't deserve that punch but MAN. It's kinda sting a bit because I headcanon they as bestie in secret.
The one WHO SHOULD DESERVED THAT PUNCH is Kekera and Beroba.
I was thinking about to redraw it- or making a new 'Keiwa-Michinaga being bestie' art again [Yes I'm ignoring the current relationship they had- my mind still stuck with their relationship at the early episode from the tag team till now]
Kamen rider geats ep 6 from my perspective:
I like their dynamic this episode, Betting on Michinaga going to be friends with Keiwa.