Remember guys, it was said earlier that Kudou is basically a pyromancer.
I expect nothing less than the total annihilation of Tatsuishi family in the next chapter, so...
BURN THEM ALL TO THE GROUND, MY BOOOOIIIIIIII
Also, I partially understand why did Kouji want to kill Miyo. He never saw how was Kudou treat her, so he thought Kudou also didn't like Miyo. But mofo really needs some good smack in his head so he can think more clearly.