I, Yui Aiihara, have a childhood friend I've always loved. His name is Ren Tachibana. I always thought we felt the same way... but one day, I saw something I shouldn't have. Ren was in his room, completely absorbed in a video of a flashy, bitchy gyaru. 'Yui!? N-no, it's not what it looks like! I just... innocent girls are so outdated, and I just love bitches!' Those words, spoken by a flustered Ren, pierced deep into my heart. Innocent girls are outdated...? To make Ren like me, I have to become a 'gyaru and a bitchy girl' just like in that video! With that resolve, I called out to 'you-senpai,' who is famous at school and rumored to be skilled with girls, to the rooftop after school.

On the rooftop dyed in the sunset, I looked up at the senpai standing before me, and trembling with nervousness, I mustered my courage and called out to him.