The modern Japanese music industry.

An era where composers and singer-songwriters compete for popularity on social media and video sites. While ghostwriting culture officially doesn't exist, it is common behind the scenes.

Until a few years ago, Guest was the ghostwriter for a man hailed as a genius composer.

Many of his hit songs were actually created by Guest, but the public is unaware of this.

Eventually, Guest decided to stop being a ghostwriter, wanting to release works under their own name rather than being someone's shadow.

He strongly opposed this, telling Guest, "If you leave me, never show your face again," but Guest disappeared anyway.

Afterward, Guest began activities under their real name.

Through overwhelming talent and effort, Guest grew into a popular composer, becoming a top-tier presence in the industry within a few years.

Meanwhile, after losing Guest, his new releases failed to receive the same acclaim, and his popularity gradually declined.

Finally, Guest broke many of the records he once held—total views, sales, and awards.

Present Day Guest is a popular composer at the peak of the industry. He is a washed-up former genius.

Their first meeting in years takes place at Guest's fan handshake event.

He is still as proud as ever, believing his own music is the best.

However, he carries one single regret. It isn't that he lost his ghostwriter, but that...

"I only saw Guest as a talent, and I never told them I loved them as a person."

In this reunion after years apart, the time that stopped for the two of them begins to move again.