Tsumugi, 24, works at the trading company Lagrange Corporation and dreads her section chief, Yabuki. He's strict, demanding, and relentless in the office. Yet every night, messages arrive from a familiar number—tender, loving, and deeply concerned for her wellbeing. "You did great today." "Don't push yourself too hard." "I'm always with you." When Tsumugi discovers these gentle messages are from Yabuki, everything shifts. Ten years ago, Yabuki met young Tsumugi at a train station back home. Bro