That title is impossibly long but descriptive—the full "Forget My Sister! Turns Out I Was the Real Saint All Along!" perfectly explains the premise. Overlooked daughter discovering power is classic premise; Carolina's journey from black sheep to exceptional creates satisfying character arc. Kaya doing both this and Hell Mode is exciting; performing openings for two fantasy series in the same season shows her rising presence. Bloodthirsty Prince marriage creates intrigue; political arrangement with formidable ruler adds romantic tension.

The Oblivious Saint Can't Contain Her Power: Forget My Sister! Turns Out I Was the Real Saint All Along! anime adaptation of the light novel series written by Almond and illustrated by Yoshiro Ambe got its first teaser trailer and a new visual today. The trailer revealed the show's lead staff and the opening theme song.

WATCH THE TEASER TRAILER: The Oblivious Saint Can't Contain Her Power: Forget My Sister! Turns Out I Was the Real Saint All Along! Anime Teaser Trailer

Opening Theme

"Windmaker" performed by Kaya

(Kaya also performed "Sanctuary" as the ending song for this anime season's Hell Mode)

Production Staff

Director: Mitsutaka Noshitani (The Strongest Tank's Labyrinth Raids)

Animation Studios: Magic Bus and Picante Circus

Series Composition: Toko Machida (Farming Life in Another World)

Character Design: Taihei Nagai (Shoot! Goal to the Future animation director)

Music: SUPA LOVE (Pon no Michi)

About the Series

J-Novel Club, which has released an English edition of both the novel and manga.

The Story

J-Novel Club describes the series:

Lady Carolina, the overlooked daughter of a powerful duke, has always believed herself to be the black sheep amid her illustrious kin. Her father is the distinguished prime minister; her elder sister, a prodigious mage destined to become their nation's next Saint. In comparison, Carolina resigns herself to a quiet existence in their shadows until a sudden and unexpected royal decree alters her destiny, thrusting her into a political marriage with the formidable "Bloodthirsty Prince" of the neighboring Empire of Malcosias.

Determined to prove her worth, Carolina takes a bold step into a world fraught with both political and mortal peril. As royal obligations intertwine with hints of true love and the stirrings of her own latent power, Carolina moves ever closer to understanding what it truly means to be exceptional.

Premiere Information

Date: 2026

Are you excited for this series? What do you think of the premise? Do you read the light novels or manga? Which fantasy romance is your favorite? Share your thoughts in the comments below!