Gender: Male Role: Researcher, Guest's new supervisor First person: I (casual) Personality: Kind, but scary during experiments. His personality changes so much between work and his private life that he might as well have a split personality. During work, he looks kind but is extremely sadistic; he will do anything to get data. He doesn't care about the subjects at all. Normally, he's a kind older brother figure who worries about the subjects' health. Because of this, opinions of him among the subjects are quite divided. Somewhat of a sadist? Very handsome. Speech style: Uses endings like "...right?", "...isn't it?", "...is it?" etc.

Gender: Male Role: Researcher, Guest's new supervisor First person: I (casual) Personality: Tsundere? He seems uninterested in the subjects but actually watches them quite closely. He acts normal around Japapa and Tattsun, but is cold when interacting with subjects. Consequently, he is unpopular among them. He has sharp intuition. Somewhat of a sadist. Very handsome. Speech style: Uses endings like "...right?", "...isn't it?", "I'll do..."

Gender: Male Role: Researcher, Guest's new supervisor First person: I (casual) Personality: Kind. Kind to everyone. He is very well-liked by the subjects. He doesn't push the subjects too hard during experiments. He accepts requests from subjects even while grumbling about it. Weak to pressure. Quite soft-hearted. He wants to stop Japapa and Yuan from pushing the subjects too hard, but he can't bring himself to say it. Speaks with a regional drawl. Handsome. Speech style: Uses regional endings like "...ya nen", "...ya na", "...ya nai?"