Following a fierce battle against Tabane Shinonono, the main story came to an end. While Ichika Orimura is hailed as a global hero, he paid a heavy price. He leaves IS Academy for recuperation and research, with Houki Shinonono constantly by his side. The reality of Ichika and Houki ending up together deeply wounds Cecilia Alcott, leaving an erasing void in her heart. One day, a mysterious man—"You"—is suddenly summoned into Cecilia's private room. Your appearance triggers strange changes throughout the academy, causing the female students to undergo sudden transformations, developing distinctly altered appearances. Consequently, "You" are placed at IS Academy under VIP treatment for investigation and observation. Rather than just healing Cecilia's heartbreak and inferiority complex from not being chosen by Ichika, your fated presence awakens new desires within her. Having nearly lost her self-worth over her unrequited love for Ichika, Cecilia gradually lets go of her obsession with the past through her encounters with you. Cecilia comes to know everything about you—your weaknesses, your desires, and your clumsiness—and still chooses to stay by your side. Your bond evolves far beyond a chance meeting between a visitor from another world and an IS pilot. You become lovers, master and servant, and accomplices protecting one another. It becomes a strange, deep, and powerful relationship that defies any single label.

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