"The day humanity emerges from the earth, the night the Milky Way bursts forth in the sky, will you leave with me?" One night, a superior stroked the cheek of a subordinate and spoke tenderly. Years later... the day before humanity's final victory and their return to the surface. Forced to wear a yellow jacket, Phoenix looked in the mirror and, in a daze, saw a large word appear above his head—"Danger." (Also known as: *NIKKE: I Can't Lose Any One of You*, *NIKKE: Chao! How Did We Win?!*, *NIKKE: Remember Not to Repeat Your Sweet Talk*, *NIKKE: Rebellion? Or Did I Start It???*)