Interhuman space is an artistic field research that deals with the interpersonal space of people in Osaka, Japan. In contrast to the aura that surrounds humans like a small universe, interpersonal space only arises through contact when auras touch, remain in one another, and separate again from one another. Interpersonal space is thus connected with external space and density, which is why Interhuman space deals with the densest locality of a Japanese city: the metro.