The episode begins with Polka Shinoyama, our protagonist, returning to his family estate alongside his companion Misaki Sakimiya. The sprawling Shinoyama Clan is introduced, featuring standout characters like Takeru Shinoyama, the head of Shinoyama Security, and Sayo Shinoyama, an unemployed shark movie enthusiast. Misaki, the daughter of Sakimiya Steel's owner, is warmly welcomed, albeit with a hint of surprise given her family's fallen status.

The story takes an interesting turn when Polka is summoned by his father, Rozan Shinoyama, the leader of the Shinoyama Group. In a tense one-on-one conversation, Rozan claims that the person standing before him is not his son Polka. Though startled, Polka—or rather, the entity possessing Polka—manages to navigate this confrontation without revealing its true identity.

Suddenly, a menacing sense of danger arises. Polka senses a potential threat to the twins Kazuki and Shizuki Shinoyama and rushes to their aid. It turns out that an eerie presence lurks within the villa—a fire-breathing entity that threatens to consume everything in its path.

Meanwhile, outside the house, the police interrogate a criminal known as Phantom Solitaire, hoping for clues about the unusual series of arson incidents. A clear parallel is drawn between the ongoing investigation and the situation unfolding in the Shinoyama villa.

The climax of the episode features a gripping sequence where the villa goes up in flames, and Polka fights to save the twins. The shape-shifting entity has infiltrated the villa and is preparing to wreak havoc. Amid the burning villa, Polka battles the fire-breathing creature alongside a mysterious ally, Zaki the Killer Killer.

The episode ends on a high note as the Shinoyama estate is saved from fiery disaster thanks to Polka and Zaki's efforts. However, the threat of the fire-breathing entity still looms large, setting the stage for future conflicts.