D---! What a plot twist! Totally didnt see the Miyakoshi thing coming D0=! Certainly not about her instigating, and def not the end there. I actually was thinking this was some kind of plot to force the MC's hand into doing something that might reveal he was involved directly in his father's death, but that didn't seem like it was it. Was certainly interesting (^,^ ).
Rikai must be surprisingly strong to make Tsuzuki choke, without even being able to anchor her feet for more force(or he just really weak, lol).