Born on April 20. According to "I"'s assumption, Mikoko is about 155cm and 50kg, a fairly normal girl. Usually has a high temper, and will hit anything nearby randomly. Owns a vespa(vintage model) and calls it "Rattatta"., which made "I" very angry because he thinks it's disrespecting for the vespa. Likes to use exaggerating metaphors. Will take off clothes when drunk. Have feelings for "I". Tomoe Emoto's first friend, and best friends with Muimi Atemiya.