Anticipation Soars as Cocoro Oomori Joins 'You and I Are Polar Opposites' Anime Cast, January 2026 Debut Confirmed

Anticipation is building for the romantic comedy anime, Seihantai na Kimi to Boku, known globally as You and I Are Polar Opposites. New details have emerged from the production committee, confirming that Cocoro Oomori will voice the character Natsumi Nishi, joining an already established ensemble cast. This series is scheduled to premiere in January 2026. Fans across Japan will be able to watch the anime as it broadcasts on major networks, MBS and TBS.

The anime draws its inspiration from the manga by Kōcha Agasawa. What began as a one-shot quickly became a serialized series on Shueisha's Shonen Jump+ in May 2022. The manga concluded its 65-chapter run in November 2024, leaving a notable impression on its readership.

Translating this manga to the screen is Lapin Track, the studio spearheading the adaptation. The creative vision for this project is guided by director Takakazu Nagatomo, working with Teruko Utsumi, who is crafting the series composition. They are ensuring an interpretation that aims to resonate with both long-time manga fans and new viewers.

Leading the vocal performances are Sayumi Suzushiro, cast as Miyu Suzuki, and Shogo Sakata, taking on the role of Yusuke Tani. Their dynamic is expected to be a central appeal of the series. Prior announcements included key supporting roles such as Yuna Taniguchi as Manami Watanabe, Konatsu Hirabayashi as Aoi Sato, and Anji Iwata as Kentaro Yamada, forming a diverse cast.

Viewers can expect a journey filled with wit, emotion, and the relatable challenges faced by an unlikely high school couple as they navigate their burgeoning relationship. This blend of humor and heartfelt moments is poised to make Seihantai na Kimi to Boku a standout title in the upcoming January 2026 anime season, establishing it as a must-watch romantic comedy.