The episode begins with the leader of the winged knights, Edil, revealing himself as an old friend of Helck. Edil explains that the humans have grown wings because they have awakened as heroes. After a battle in which Hyura defeats Edil, Edil is killed by one of his comrades. Meanwhile, Helck and Vermilio are sucked into a hidden gate beneath the castle.

Helck and Vermilio find themselves on a remote island, far from the continent. They decide to make the best of their situation, building a house and exploring the island. Helck's ingenuity and optimism shine through as he constructs a house and plans to build a boat to return home.

Back in the demon realm, Lord Azudra is deeply concerned about Lady Vermilio's disappearance and decides to search for her using a tracking spell. The spell reveals that Vermilio is not marked on the map, leaving Azudra and his allies confused and worried.

On the remote island, Helck and Vermilio encounter the island's inhabitants, who are initially reserved but soon befriend them. Helck's friendly and carefree nature wins them over, and he continues working on building a boat to return home.

The episode also highlights Anne's inner struggle, as she remains uncertain about Helck's true motives. She wrestles with whether to trust him or see him as a threat while trying to understand his actions.

On the island itself, ancient ruins are discovered, hinting at a once-thriving civilization.

Towards the end of the episode, the islanders confront Helck and Vermilio, demanding a discussion about their actions on the island.