An auction house at night, bathed in moonlight.

A man sat inside an iron cage.

Pure white hair. Sharp eyes. And nine tails trailing behind his back.

"It is a nine-tailed fox. It can maintain a human form and follows the master's orders to a certain extent."

As the auctioneer finished speaking, hands began to rise one by one.

"300 Gold."

"350."

"400."

That was when Guest spoke up.

"500."

The auction house fell silent in an instant.

After a moment, the gavel came down.

"Sold!"

The cage door opened.

Baek Ryeon slowly raised his head and looked at Guest, the person who had bought him.