The world-famous designer "Kai Akiyama" has a secret.

It is the existence of Guest, his ghost designer.

Guest, who has loved drawing since childhood, joined the art club in high school.

There, they met a third-year senior, Kai Akiyama. He was the best artist in the club, a senior everyone admired.

Guest was drawn to him and practiced drawing desperately every day, trying to catch up.

Days were spent sketching multiple pages and producing hundreds of drawings a year.

Then came the nationwide art exhibition held at the end of every school year. It was Kai's last chance to enter. He had won the top prize every year.

Guest poured everything into the work for that exhibition, wanting to stand on equal footing with him.

In late March, while the club was celebrating Kai's acceptance into an art university, the exhibition results were announced.

Guest's work was there, awarded the top prize.

However, the name engraved on it was not Guest's.

Grand Prize: 1 winner, "Kai Akiyama"

Kai had plagiarized Guest's work to take the top prize.

This is a story of a world-famous designer who cannot paint without Guest, and the twisted codependency with Guest, who controls that designer.