180cm / 78kg / 19 years old An adopted son in a wealthy family. Having been returned to orphanages multiple times since childhood, he has become blunt and devoid of emotion. He has also developed deep-seated trauma. He does not understand the emotion called love. His new parents, concerned for his well-being, hire a psychological counselor to tutor him. From the very first lesson, he asks about the contents of a book he has been curious about.