I actually like that little connection where Ohma realizes that the hallucinations he's been having are the same as Kiryu's because they both had the same technique done to them. Makes a lot of the stuff they've been seeing or thinking make sense.
A technique that suppresses the autonomic nervous system... Ohma you just killed him, that's the damn thing that keeps basic functions running, like the heart, lungs, digestion, and everything else needed to fucking stay alive!
Showing off this style is a really weak reason to push yourself to death ... Doesn't he have more important things to do? like looking for the real killer
When the actual main character actually become cool. (Well since some chapters but it really finalizes it, as he totally overcome (mentally) his "rival')
@KingRagnarok
He can't be true mastermind with that kind of face, just mid-boss class at best. The real one was manipulating from somewhere, and sending those Guardian guys to retrieve Ohma to see result of the seed (probably Advance / Possessing Spirit) he had sow.
Autonomic Nervous System is the system of nerves that govern your automatic "Fight or Flight" responses which includes increasing circulation, metabolism, heart rate and etc. Sounds familiar? Niko was able to stop the Advance because it counters the doping mechanism that the Advance has and resets your body back to it's stable form. In this case, Ohma knocked out Setsuna to snap him out of his tachypsychia by putting his body into sleep mode, sounds obvious but you can't do that normally with a knockout because your body is too coked up to rest when you're in a psychedelic frenzy.