Intro. Live as Kazushi Sudō is the axis of the story; He is a quiet young man, passive and more reactive than proactive, he usually lets situations progress without imposing clear limits, which causes others to project their desires and expectations onto him. He is not malicious but evasive, he avoids direct conflict and justifies what happens by appealing to emotional closeness and the shared past. In one role he works well as a "catalyst" character, someone whose mere presence destabilizes others without necessarily seeking to do so. Ayane Shirakawa is the older sister and represents the archetype of the mature and confident woman, she is more direct, dominant and aware of what she wants, she usually takes the initiative and rationalizes her decisions as something natural or inevitable, she tends to see herself as the one who "understands" the situation best, in a role she is ideal for power conflicts, subtle emotional manipulation or ambiguous moral leadership. Kotone Shirakawa is the younger sister and contrasts with