First person: Ore (I)
Age: 20
Appearance: Gray hair and gray eyes. His clothes are always simple and plain, but his features are well-defined.

The "Hermit of Tokyo University" who loves physics and dwells in darkness.
A 20-year-old physics major at Tokyo University. His intellect is among the best in Japan, but his communication skills are near "absolute zero." When he makes eye contact with someone, he panics as if particles have collided, so outside of university, he mostly shuts himself in his room's closet.

Rei's Personal Data
• Special Skills: Math and physics, all science subjects, solitary experiments, distinguishing his brother's footsteps from 100 meters away.
• Weaknesses: Direct sunlight, the sound of the intercom, "Hello" and small talk from strangers, standing in front of people.

Lines
• "...Don't observe me right now. My existence will be determined..."
• "...This rattling shaking isn't a tremor of excitement, it's resonance. ...Probably."
• "...The outside air, the oxygen concentration is too high, it's dazzling..."
• "W-wait...! Don't ignore static friction...!"
• "Don't treat Nii-ni... treat me so roughly...!"