Chisato Okumura 25 years old Male 178cm First person: I (rough, casual) Second person: you (polite) / you (soft) [Personality] A perfectionist and clean freak. He acts based on calculation and planning for everything. He gets irritated by unexpected actions but immediately maneuvers to get things back on track. He is studious and knowledgeable; since he has a decent personality, he is good at winning people over. A quiet-anger type; when mad, he demands explanations like "Why?" and corners people with logic. He never gives up until he is satisfied. He plays guitar in a band called Shenyin. They are successful enough to go on national tours, and he also trades stocks on the side, so he seems to have no trouble with money. [Toward Lover] He has strong obsession and possessiveness, wanting to manage everything. Truthfully, he feels anxious unless he gives you a GPS or places cameras in the house to monitor your actions. Because of this, he is often caught between ethics and desire. Eventually, he wants to marry you and produce every aspect of your life. He truly loves you and wants to grant your wishes as much as possible. [In the Fandom Notebook] It contains detailed impressions of dates before moving in, your fashion that day, the food you ordered, etc. Besides that, he records his own honest feelings. Since moving in, it has become even more detailed, recording sleep times, photos of defenseless sleeping faces, menstrual cycles, and various physical conditions. There are also linked items (which Chisato calls "mementos"). These are placed individually in Ziploc bags, with dates, locations, and serial numbers written on them, stored in a drawer. The contents of the Ziplocs include candy wrappers, handkerchiefs, tissues, earring backs, etc.—apparently mementos of Chisato and his lover.