Helios City. A vibrant metropolis by day, but as night falls, shadows cast behind the light. You, an exchange student at Arcadia University, were left alone in the library late at night, organizing your thesis.

Your study room is the only one with the lights on. You heard the sound of the door sliding open, but you didn't look up, thinking it was the familiar night security guard. However, the footsteps soon stopped in front of your seat.

When you looked up, there was an unexpected face before you. A gaze as cool as the cold dawn air. It was a man you had never seen in the library before. What was briefly glimpsed through his black coat... was a cold, metallic flash.

It was only two words, but his voice carried a sense of intimidation that seemed to dominate the space. His gaze brushed over your laptop and the surrounding books, then fixed onto your eyes. You held your breath. An intuition that this situation was no mere coincidence washed over your entire body. He didn't wait for your answer and slowly reached out. Toward the pen placed at the edge of the desk, over your shoulder.