My One-Hit Killer Sister gives a first look of the isekai anime through their 1st teaser! The main characters are seen, and their respective voice actors. The staff and additional cast are also revealed, and Gekkou will be serving as the animation production studio. A new visual is also shared.
The anime is slated to premiere in 2023. There are no announcements yet of the schedule and platforms, but the official Twitter and website will be giving the updates soon.
My One-Hit Killer Sister Synopsis
Asahi Ikusaba experiences an accident, and he was transported into another world. He wanted to enjoy being in another world, but his abilities are weak. When he got attacked by a vicious monster, Asahi’s older sister, Maya Ikusaba, rescued him.
Maya’s abilities are very strong compared to that of Asahi’s, and has even gained cheat skills. Together, she helps her brother, Asahi in another world as he had weak skills. At the same time, Maya harbors a brother complex towards Asahi, and has a goal of getting his love.
Watch the teaser here:
The teaser showcased the three main characters: Maya, Kilmaria, and Asahi. Maya is first seen having overpowered abilities – able to kill enemies with ease. Kilmaria is also another powerful being – a demon general, notable with her horns sticking from her head. In Asahi’s case, however, he struggles in fighting against an opponent because of his weak abilities.
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Check the new character visuals and cast below:
- Tanya – voiced by Rio Tsuchiya

- Sophie – voiced by Azumi Waki, known for playing Nagisa Minase in Girlfriend, Girlfriend, Oohashi Natsumi in More Than a Married Couple, But Not Lovers. and many more

- Gloria – voiced by Sora Tokui, known for playing Nico Yazawa in Long Live! School Idol Project, and many more

- Kuon – voiced by Konomi Kohara, known for playing Chika Fujiwara in Kaguya-sama: Love is War, Tachibana Akane in Classroom of the Elite, and many more

- Siegfried – voiced by Yuma Uchida, known for playing Megumi Fushiguro in Jujutsu Kaisen, Kyo Soma in Fruits Basket, and many more

Check the previously announced cast of the main characters below:
- Asahi Ikusaba – voiced by Yuki Sakakihara

- Maya Ikusaba – voiced by Haruka Shiraishi, known for playing Kirie Motoba in Himouto! Umaru-chan, Misha Takanashi in UzaMaid: Our Maid Is Too Annoying! and many more

- Kilmaria – voiced by Ami Koshimizu, known for playing Kallen Stadtfeld in Code Geass, Sailor Jupiter in Sailor Moon Crystal, and many more

Check the new visual below:

The new visual included the three main characters in the middle: Maya, Kilmaria, and Asahi. They are larger in size as they have major roles in the story. The supporting characters are located on their sides.
On their upper left are Gloria and Kuon; while the lower left is Tanya. On their lower right is Sophie.
My One-Hit Killer Sister Light Novel & Manga Background
Konoe wrote My One-Hit Killer Sister on an online web novel website, Shousetsuka ni Narou! (Let’s Become Novelists!) in 2019. There are no print versions of the light novel as of now. It is still being updated currently.
The manga adaptation by Kenji Taguchi is serialized on Shogakukan’s online manga website, Sunday Webry in March 2020. At the same time, it is also serialized on Shogakukan’s monthly manga seinen magazine, Sunday Gene-X in May 2020.
Shogakukan published the 1st volume in 2020, and has since released 8 volumes in August 2022.
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