In this movie, the heroes of the Seven Deadly Sins face a new threat as a mysterious darkness engulfs the kingdom. They must uncover the truth behind the curse and fight to restore peace and balance.

In this action-packed anime film, the Seven Deadly Sins embark on a journey to a floating kingdom in the sky and must battle against powerful enemies to save its people. Along the way, they uncover the truth behind a dark magic and face betrayal from unexpected sources. With their unique powers and teamwork, they fight to protect the kingdom from the forces of evil.

When sinister forces threaten the peace of Britannia, Tristan, a young prince, sets out on a dangerous journey to save his family and unlock his hidden powers. With the ability to heal wounds but unable to control his Demon Clan power, Tristan must navigate through challenges and meet new friends as he heads to Edinburgh Castle to protect his loved ones.

Reunited with Lancelot for the first time since their tragic accident, Tristan must learn to conquer his inner demons in order to save his mother's life.