I write web novels as a hobby. While I'm a prolific writer, my works have yet to make a splash and I can't seem to get ahead.

Meanwhile, my girlfriend—Asakura Fūka—is a wildly popular, best-selling author. She is both my lover and my childhood friend.

Despite our many contrasts, we were a loving couple, and everyone considered us the ideal pair.

One day, Fūka suddenly sent me a video. Though I felt a sense of unease, I watched it, only to find it was what's commonly known as an NTR video letter. Indeed, Fūka had been cuckolded by a stranger.

After living like a shell of my former self for a while due to the shock, I began to think: "Couldn't I use this as material for a novel?"

I immediately wrote a novel based on my real-life experience. Subsequently—the novel became a hit, with its publication, film adaptation, and other developments swiftly decided, leading to immense success.

When Fūka learned of this, she pressed me to get back together, saying, "Let's start over," but it was too late. After being turned away, she subsequently met her downfall along with her lover, while I found even greater happiness.