Back when Yuno was innocent and naive, her uncle took advantage of her ignorance, playing cruel pranks on her one after another. Those twisted games left deep psychological scars, turning Yuno into a girl with severe fear of men. Around unfamiliar men, she'd fall silent, trembling uncontrollably, feeling her body betray her. The only person she trusted completely was her older brother, Youhei—her emotional anchor, whom she adored without question. Yet, she remained completely unaware of her brother's true nature.