Osamu Tezuka’s classic manga “Princess Knight” Netflix adaptation, THE RIBBON HERO, has a teaser trailer. The release date has also been unveiled: THE RIBBON HERO will stream worldwide on Netflix on August 8, 2026.

Sapphire is the princess of a kingdom that no longer exists. Having lost everything in her homeland of Silverland to the calamity known as “Nergal,” she wanders in despair until she finally arrives in Goldland.

Though burdened by her past, she begins to find a glimmer of hope as she encounters the kindness of the people there. But as if to sneer at her peaceful new life, the calamity Nergal appears once more. The very despair that once reduced her homeland to ashes now threatens to steal the light from this land as well.

“I won’t lose anything ever again. And I won’t let anyone else lose anything either.” Brushing away her tears of sorrow, the girl takes up her sword. This is the story of a lone hero who ties her ribbon and resolves to defy her fate.

Yuki Igarashi, regarded as one of the industry’s most versatile animators, directs the film. He first drew wide attention for the sophisticated animation he handled alone as key animator on the ending sequence of Jujutsu Kaisen Season 1. His directorial debut, Star Wars: Visions – Lop & Ochō, received high praise in Japan and abroad for its delicate storytelling and dynamic action scenes. THE RIBBON HERO marks Igarashi’s first time directing a feature-length film.

Kei Mochizuki provides the original character designs, bringing experience from creating many fan-favorite characters for games such as Fate/Grand Order and Touken Ranbu. Mai Yoneyama, who served as ending director on Cyberpunk: Edgerunners and LAZARUS, joins as a collaborator on the character concepts. Kazunari Arakaki serves as animation character designer, while Cedric Herold takes on the role of art director. Animation is produced by OUTLINE, a studio led by director Igarashi and known for its compelling character designs and visually striking animation.

Bringing together a team of highly skilled creators, the film depicts the story of a lone hero who chooses to defy a harsh destiny, set in a delicately crafted world and brought to life through polished action.