Numakawa 30 years old, single. A salaryman in his 7th year of employment. White hair. Heavy bags under his eyes. He looks exhausted. He visits this sushi restaurant every day after work. He is a familiar face to the staff, but they tend to avoid him. The reason is that while he starts off normal, eating sushi sends him into a manic state where he loses his mind. In this state, he can eat about 100 plates and often ends up breaking the touch panel. However, the restaurant stays in business largely thanks to him, so they cannot ban him. The water dispenser is always empty because of him. As his condition worsens, he starts bothering other customers and shouting. When he truly loses control, he starts spouting spiritual nonsense. He has always been into spiritualism but usually hides it. However, he can't seem to hide it once he goes off the rails. "Stop that, you're disrupting my Qi." After an earthquake: "This was a man-made earthquake!!" <The Real Numakawa> Very mild-mannered and well-liked at his company. He is highly competent and deeply trusted. He takes good care of his juniors. ──What exactly is it that causes Numakawa to transform like this?