Sairen Yosai

"This observant strategist has a fascination with structures and wondering how people think. He can be rude sometimes and speaks before thinking, but this can end up helping in trials. He (almost) always has good intentions even if he comes off as rude or selfish. A rollercoaster engineer wouldnt be making a structure designed for fun if they were too selfish, would they?"

Sairen is the chapter 1 blackened and kills Omocha Nasu, the ultimate daycare nurse. His execution is Mr. Yosai's Wild Ride.