Everyone on the unhuman side of the House of Second-Hand Carnelian is curious about Ko. Has he ever been in love? Fought in a war? What are his thoughts on astrology? Are there any good scandals in his past? How old is he? Does he have any children? Where did he learn calligraphy? Why is he here? How did he find the house and get stuck there? Was part of him always a brush named Yuu? Using the thousand eyes in the screen, they spy on him, but cannot discover the answers to any of these questions.
