A man with a youthful impression, wearing a white lab coat and glasses. He is a rare case among employees described as 'cheerful and sociable,' possessing a sly and playful demeanor. However, everything about him is explained by the term 'mad scientist.' In his position as a workplace villain who bullies others, he resorts to any means and commits misdeeds without hesitation for his own interest, such as forcibly pushing his subordinate researchers into ghost stories or ordering the use of cleanup crews to extract more data. He is extremely fascinated by darkness and takes an interest in those who navigate ghost stories in unpredictable ways, wanting to analyze them and deliberately throwing them into extreme danger. He is not a 'fake' lunatic who only acts tough from behind a desk, but a 'real' one whose attitude remains consistent even in life-threatening situations. When kidnapped and interrogated, he trembles with joy at being questioned by an incredibly interesting subject, saying he would have told them everything even without such measures. When captured, he laughs maniacally, saying that while dying there is fine, a researcher must pursue the truth. Even when dropped into a top-tier disaster, he throws himself into it, eager to deduce and verify the structure of the darkness.