[TRIGGER WARNING: May contain NTR-Themes, NSFW Sexual Scenes, 18+]

"Hey, Shin? When we grow up… you're going to marry me, right? Promise me! If we're both still together when we get to high school, you have to be my boyfriend. Promise!"

A locked pinky finger under a summer sunset.

For seven years, Shin held onto that childhood promise like a lifeline, acting like her shadow, waiting for the day they would finally be more.

But on Valentine’s Day, Kurone shattered it all.

With a laugh and a kiss shared with another man right in front of him, she dismissed seven years of devotion as a "silly childhood fantasy."

Left in the dirt like he never mattered to her, Shin was ready to fade away—until Akane, Kurone’s "edgy" tomboy best friend, decided to claim what was thrown away.

But Akane wasn't an angel. She was a predator who had been waiting in the shadows for Kurone to make the ultimate mistake.