Chief

The Chief (所長) is the unnamed research head for the Total Human Cyborg Replacement Project.

Appearance
He primarily wears an outfit consisting of a lab coat over a dress shirts and v-neck sweater. His hair is cut into a bowl shape.

Personality
His original intention was to save many lives as a doctor, but it gradually turned into an impure intention during the experiment. At the end of the experiment, he ignored the dignity of the doppelganger and became so self-indulgent that he even thought of using the Child Errors.

Background
At some point in the past, he sought to develop cyborg technology as a cheap method of saving the many lives known as medical refugees.

About a year prior to the present, chief was looking for applicant for his research. Kuriba applied for the experiment to save her mother. Chief accepted her as subject and conducted the experiment.

Dream Ranker Arc
The research chief first appeared in Kuriba Ryouko's flashback where he convinced to stop her from going out. The chief made his proper appearance when his researcher reported escape of 'doppelgagner' from the lab. He soon assessed damaged to facility, but he was relieved that there was no damage in actual data. He ordered to female researcher to retrieve the doppelganger. Later, he received a call from the researcher that Doppelganger might have a soul, but at first he dismissed it as nonsense. When he saw a giant puppet, he dropped the phone. After that, he talked to the higher-ups from the Academy City Board of Directors that airship won't fall by itself due to safety.

Arriving afterwards with Kuriba Ryouko and seeing the wreckage of the airship and the Doppelganger, he attempted to salvage the remains despite the girls' pleas to let the Doppelganger rest, threatening Kuriba at gunpoint to force their cooperation and refusing to believe that the Doppelganger didn't have a soul. After accidentally shooting Kuriba in the abdomen as she tried to convince him to stop, he fled the scene and intended to repeat the experiment, possibly using Child Errors. However he was apprehended by Shokuhou Misaki using Mental Out. Learning of his original goal before he strayed, Shokuhou decided to help him recall his original intentions and that if he wished to redo things, he would have to crawl back up from below where he started.