Do you find yourself wanting for more of Mahiro and Mihari’s wild and experimental daily life? And now that you’ve watched the anime, you must be wondering, “where does Onimai anime end in Manga?

If you had this question, then this is just the perfect place for you! Binge-watching this series in one sitting means one thing—you’re hooked on its story. Quite understandable as the anime has already charmed many fans with not only its narrative flow but also the animation, characters, and humor—but still left a large coverage of the manga untouched.

Although it brought the story into the limelight, giving way to entertainment for a wider audience, it still covers a small part of the original manga. If you’re eager to continue Mahiro’s adventurous journey, then this will be your ultimate guide to everything you need to know about where to pick up the story in the manga. So, get ready to dive in!

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Where Does Onimai Anime End in Manga?

If you’re an avid manga reader, then you will know how normal it is for anime adaptations to jump off or cut off some of the scenes from the actual story, and Onimai’s not an exception. Truthfully, the story was adapted in a non-linear way, making it somewhat tricky for you to pick up the exact chapter as to where the anime ends. Of course, this way is quite understandable for it to become a more entertaining and cohesive viewing experience, with you not being able to predict the next parts of the story!

Technically speaking, the anime’s final episode, entitled “Mahiro’s Future as Sister,” draws out exactly from Chapter 18 of the manga, focusing on a minor scene of Mahiro helping out at Mihari’s school festival while dressed in a maid outfit! However, throughout its run—and to be exact, the anime pulled the story from the first 38 chapters of the manga, regardless of its chronological scenes. Scenes skipped or jumped off, the overall story came from these selected chapters.

The Ending Point: How Did The Anime Conclude? 

To remind you, the anime adaptation of Onimai: I’m Now Your Sister! ended with Episode 12, entitled “Mahiro’s Future as Sister,” which loosely adapts from Chapter 18 of the said manga. It may come as a surprise for some of you, especially compared to the full 12-episode context of the anime, but Onimai takes more than just taking part by part in its storytelling.

If you remember, the last episode ended with Mahiro attending Mihari’s school festival. To help his sister, the former reluctantly agrees—embarrassed, rather—to help out at the festival by working at a maid café that Mihari’s class is running. But well, despite his hesitation at first, Mahiro still eventually enjoyed the experience, as this gave him a way to help out and interact with festival visitors, showcasing how far the character had come when he got his new body first, until he got used to it.

Indeed, the ending leaves you an open-ended course, as Mahiro’s adjustment to life as a young girl and Mihari do all that she can to return Mahiro to his original body and identity. This itself makes the likes of you eager enough to know what happens next!

You’re probably itching to pick up the story where it left off. Either you will start reading at Chapter 19 for a fresh start after the last episode or continue at Chapter 39 if you want to skip repeated parts you’ve seen from the anime.

Manga Overview: Episode-by-Episode Anime Coverage Breakdown

To make yourself remember all the things that happened in Onimai, this is the section where you’ll try to go back to all the elements of the story. Below is a detailed breakdown of how each episode exclusively corresponds to the manga chapters. However, expect a more non-cohesive reading experience still, since the anime itself doesn’t perfectly bring in sequence episodes to all the viewers.

Onimai: I’m Now Your Sister! Episodes 1-3: The Transformation

These first three episodes establish the very premise of the story, introducing you to Mahiro’s new reality as a young girl. It later on covers Chapters 1, 1.5, 2, 3, 6, and some parts of Chapters 5 and 19. As Mahiro is transformed into a girl by Mihari’s experimental drug, more adventure and newness comes into the story until, interestingly, the anime incorporates some later narratives from the manga for character dynamics. 

Onimai: I’m Now Your Sister! Episodes 4-6: School Life and New Friendships

These episodes focus more on Mahiro’s social life as it expands and his adaptability to school life as a young girl, covering Chapters 11-15, 21-22, and some other parts of Chapter 20. When Mahiro met Kaede, their friendship bloomed, and they ventured on a journey towards change together, circulating more about his new school life and relationships. This is one of the most important episodes of the anime as it presents Mahiro’s changes and integration into social life as a girl. 

Onimai: I’m Now Your Sister! Episodes 7-9: Slice-of-Life

These episodes fall deeper into everyday life experiences of Mahiro’s character that challenge his comfort and real disposition in life. These cover Chapters 23-30 and other parts of Chapter 21.5, focusing more on his new friends’ personalities, which add color and growth to Mahiro’s life. Excelling at emphasizing identity crisis, happenings and events from these become particularly significant as they show Mahiro’s evolving relationship with clothing and self-presentation. 

Onimai: I’m Now Your Sister! Episodes 10-12: Building Towards the Festival Finale

The final blow of the anime highlights the school festival event, which occurs much earlier in the manga, and shows an entertaining adaptation ending for the viewers. These episodes cover Chapters 31-37 and some altered parts of Chapters 17-18. Truthfully, the festival serves as a perfect setting to give importance to Mahiro’s growth, as it requires social interaction, cooperation, and ease of comfort with his feminine appearance.

Where To Continue the Manga After The Anime? 

If you would like to continue based on the anime’s adaptation pattern—without missing a thing—you must start reading from Chapter 39 of the manga, as this will ensure all the story you wanted to know more about that wasn’t covered in the anime. However, the thing is that the anime skipped a lot of chapters from the manga, so you might still miss out on several notes and characters from the story. Another recommended tip is still to begin at Chapter 1—the very beginning—to avoid confusion and such.

If you’re short on time but still want to catch most of it, consider starting to pay more attention to chapters that seem unfamiliar from your anime viewing experience when you begin at the first chapter of the manga. 

Manga Status

The manga is still ongoing as of 2025, having launched in 2018. The creator, Nekotofu, has been releasing approximately 1-2 collected volumes per year, being fairly consistent with it. While there has been no official announcement regarding Season 2 of the anime, you can just read it through the manga!

Conclusion

Of course, you LOVED Onimai, the main reason why you’re here and you want more. Reading the manga is your best bet, and it is worth diving into. So what are you waiting for? Time is too short for you to waste; read now!