A first promotional video has been released for I'll Live a Long Life to Dote on My Favorite Stepbrother!, offering a glimpse into its fantasy world and central romance. The trailer showcases Alba, a young man reborn into a noble family with a magical ailment and a short life expectancy. He is taken in by a duke, where he reunites with Orsis, his beloved from a past life, setting the stage for a story of devotion and overcoming fate.
The series, adapted from a manga of the same name, is being animated by Imageworks Studio and is slated for a Winter 2026 release. The PV highlights the series' blend of isekai tropes with a strong focus on the developing relationship between Alba and Orsis, hinting at both the challenges of Alba's condition and the emotional core of their connection.
