The upcoming anime adaptation of the popular light novel series, “My Friend’s Little Sister Has It In for Me!”, has unveiled its premiere window, much to the delight of eager fans. The series, known in Japan as Tomodachi no Imōto ga Ore ni Dake Uzai or ImoUza for short, is slated for an October 2025 debut in Japan. This highly anticipated announcement comes alongside a new teaser trailer and a key visual, further igniting the excitement surrounding the romantic comedy.
Production and Staff Details
The anime is being produced by Studio Blade, known for its work on Hokkaido Gals Are Super Adorable! in collaboration with Silver Link. Directing the series is Kazuomi Koga, who has previously helmed projects such as Rent-a-Girlfriend and Kubo Won’t Let Me Be Invisible. The series composition and scripts will be handled by Touko Machida, recognized for their work on Lucky Star and 7SEEDS. Character designs are being crafted by Katsuyuki Sato, who also worked on My Stepmom’s Daughter is My Ex.
Cast Announcement
The voice cast for the anime adaptation will see the original drama CD cast members reprising their roles, ensuring continuity for fans. Haruki Ishiya will voice the main character, Akiteru Ooboshi. Sayumi Suzushiro takes on the role of Iroha Kohinata, the titular little sister. Other cast members include Tomori Kusunoki as Mashiro Tsukinomori, Soma Saito as Ozuma Kohinata, and Kana Hanazawa as Sumire Kageishi. Additionally, Reina Kondo will voice Midori Kegeishi.
Storyline and Premise
“My Friend’s Little Sister Has It In for Me!” is a romantic comedy that centers around Akiteru Ooboshi, a high school student who is more focused on his game development group, the “05th Floor Alliance,” than on romantic pursuits. Akiteru’s life takes an unexpected turn when his uncle, with whom he seeks to secure a business partnership, requests that he act as his daughter’s boyfriend. This puts him in a complicated position, especially considering the presence of Iroha Kohinata, his best friend’s younger sister, who relentlessly teases and bullies him.
Key Characters
- Akiteru Ooboshi: The protagonist of the series, Akiteru is a pragmatic high school student uninterested in romance. He is the leader of a game development group.
- Iroha Kohinata: The younger sister of Akiteru’s best friend, she is known for being a bright, kind, and beautiful honor student. She often teases Akiteru, which becomes a central element of the story. Iroha aspires to become a voice actress.
- Mashiro Tsukinomori: A second-year high school student who is Akiteru’s classmate and cousin. She’s a childhood friend of Akiteru and a popular novelist known under the pen name Namako Makigai. She is gentle with strangers but cold towards Akiteru.
- Ozuma Kohinata: Akiteru’s best friend and Iroha’s older brother.
- Sumire Kageishi: A teacher at Akiteru’s school and also a member of his game development group, known for her sadistic nature.
The narrative explores the dynamics between these characters, particularly Akiteru and Iroha, as they navigate the complexities of their relationship. The series delves into themes of friendship, love, and personal growth, all within the context of a humorous and engaging storyline.
Light Novel and Manga Adaptations
The “My Friend’s Little Sister Has It In for Me!” anime is adapted from the light novel series written by Ghost Mikawa and illustrated by Tomari. The series began publication in April 2019 under SB Creative’s GA Bunko imprint and has reached ten volumes to date. J-Novel Club licenses the light novels in North America and provides English translations.
A manga adaptation illustrated by Hira Hiraoka began serialization online in December 2019. Square Enix publishes the manga in Manga Up! magazine, with eight volumes currently available. Both the light novel and manga series have garnered a significant following, contributing to the anticipation surrounding the anime adaptation.
What to Expect from the Anime
The teaser trailer offers fans a glimpse into the anime’s animation style and tone, highlighting the dynamic between Akiteru and Iroha, while also showcasing the voice acting of the main characters. The series is expected to be a faithful adaptation of the source material, bringing the quirky and humorous interactions to life. The anime will likely capture the essence of the romantic comedy genre with its blend of teasing banter, unexpected situations, and heartfelt moments, appealing to fans of both romance and comedy anime.
Where to Watch
As of now, specific streaming platforms for the anime have not been announced, however, given that Crunchyroll streams other anime series it may be a viable option. Fans can expect more announcements regarding streaming availability closer to the October 2025 release date.
Conclusion
The “My Friend’s Little Sister Has It In for Me!” anime is poised to be a significant release in the Fall 2025 anime season. With a talented production team, a popular source material, and an engaging premise, the series has all the elements to captivate a wide audience. Fans eager for a lighthearted romantic comedy should definitely add this title to their watch list. As the premiere date approaches, more updates and details are expected to be revealed, further increasing the anticipation for this series.
