The BL hit I’ll Live Long to Adore My Best-Boy Brother-in-Law—aka Saioshi—is set to premiere its TV anime in January 2026. This quick guide focuses on where and when to watch as details lock in, plus a fast primer so first-timers can meet Alba and Orthis before episode one.
January 2026 TV premiere: current broadcast plan at a glance
Saioshi is scheduled to begin airing in January 2026. Exact channel, weekday, and airtime will be announced closer to launch via the official site and socials. Treat January as your planning window and set alerts so you don’t miss the first drop.
Key visual and staff revealed under the BALLOON & Light Anime® framework
A new key visual is out alongside the premiere window. The project runs on DNP’s Light Anime® pipeline within the BALLOON initiative, with animation by Imagica Infos / Imageworks Studio. Credits include Director Yusuke Morishita, Series Composition Izumi Tezuka, and Production Supervisor Kazuya Takahashi; original novel by Tenma Asahi with illustrations by Kazuaki, and manga by Tenma Asahi & Tsujimoto Tsugu (AlphaPolis).
Reincarnation meets “oshi” devotion: the brother-in-law hook in one minute
Alba reincarnates as a frail noble boy adopted into a duke’s house—where his new older step-brother is his past-life “ultimate oshi,” Orthis. In the original flow, Alba’s misfortune would dim Orthis’s smile; Alba chooses to rewrite fate: heal, grow stronger, and protect that smile. Expect a warm, slice-of-life BL with gentle comedy and courtly fantasy.
Why Alba and Orthis win fans fast: a first-timer character snapshot
Alba: earnest and self-aware; his goal is literally to live long enough to adore his favorite person.
Orthis: admired, capable, and cool on the surface—with a soft core that shines as their bond deepens.
Stay updated: official links and how to track regional streams
Bookmark these for schedule locks and trailer drops: Official anime site / BALLOON project X / Original work portal. Add the title to your watchlists/notification tools so your region’s streaming page pings you when listings go live.
Bridge the wait: novel Vol.6 special edition and comic Vol.2
A novel Vol.6 is on the way—also in a special-edition booklet—and comic Vol.2 is available, making it easy to sample the story while you wait for the anime launch.
©「最推しの義兄を愛でるため、長生きします！」朝陽天満 / アルファポリス
©漫画版「最推しの義兄を愛でるため、長生きします！」朝陽天満・辻本嗣 / アルファポリス
©朝陽天満・辻本嗣・アルファポリス/「最推し」製作委員会
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