This guy is a walking talking deus ex machina. Protagonists in a sticky situation and need to be helped? Ninagawa to the rescue. Characters have a lore question? Ninagawa has the answer. Plot stalling and needs a direction? Ninagawa will come by and move the story forward.
I bet if the characters ran out of TP, Ninagawa would come by and get them all the rolls they need.
Sure, the story is just people running back and forth between unlikely escape and obvious danger, and being rescued ex machina again and again, but at least it's still kind of dynamic.