Recently, high school student Aya Osawa has taken an interest in someone. This person works as a clerk at a CD shop and has a cool demeanor, dressed in black attire. Aya admires this mysterious figure, yet the person she's drawn to is actually Mitsuki Koga, a classmate sitting beside her at school, and not a male but a female.

Mitsuki avoids looking at Aya, Chizuru, and Mao, she views the "flashy-gals" as mean.

She thinks to herself, drowning out Aya's talk of "The Cd Shop Guy" "What should I do?"