Zenshu (全修) is an original 12 episode isekai anime produced by MAPPA. The series originally aired during the Winter of 2025.
Hirose Natsuko is a celebrated young anime director who is struggling to complete the screenplay for his first movie, First Love. AFter accidentally getting food poisoning she wakes up in different world. She quickly determines she is in the world of the anime that influenced her to become and animator, the derided fantasy A Tale of Perishing. The world of A Tale of Perishing is that of near death. The source of its light and growth, the soul futures, have been gradually extinguished by an alien menace known as the Void. A band of legendary heroes, the Nine Soldiers, have done everything they can to protect them, but only 4 heroes remain. They and everyone else have crammed into the last city, built around the final soul future. Things are looking desperate because once the final soul future is destroyed the world will end as they know it. The Nine Soldiers encounter the out of place Natsuko in the outskirts of town but consider her a nuisance and a trouble maker. She does what she can to convince them other wise, but the leader, Luke Braveheart wants nothing to do with her. Using her knowledge of the anime, she tries to warn them of danger only to be ignored even once the next attack happens. As the battle rages and one of the other heroes begins to cast a spell, sacrificing himself to save the others, an item from the real world begins to urge Hatsuko to take action.
The item is her peg bar and when she heeds its urging she goes through a fantastical magical girl transformation and finds herself sitting at a replica of her animators desk. She formulates an idea in her head and with inhuman speed, sketches out a storyboard. As soon as she is finished with it magic causes it to spring to life, a gigantic being with a powerful beam weapon that decimates the hoard of Voids, preventing the hero Unio from sacrificing himself. After demonstrating her ability and usefulness she is accepted into the ranks of the Nine Soldiers. Her prescient ability only goes so far though as the plot begins to change in reaction to her meddling. The original anime ended in the despair and failure as Luke succumbed to the trauma of loosing everything he cares for. Natsuko tries to intervene as much as she can to prevent this but as things move further away from what she knew this became harder to maintain. Will she learn life lessons she was unable to learn in the real world as she struggles to protect this new world?
Zenshu was a unknown given its an original piece that seemed to be part Shirobako and part every isekai out there. What sold me with the preview was the beauty of the animation. This is a fantastically animated series with a lot of care placed on making the characters distinct. In the moments when Natsuko is remembering the anime version of A Tale of Perishing, the art style and quality changes to reflect a lower quality TV anime from years past. The other characters themselves are done in different styles as well. Luke looks like a classic fantasy character from the 80's. Unio, a shapeshifting magical unicorn, looks like he would be more at home in Care Bears. QJ, the strange statue-like being, is absolutely a reference to a famous figurine from the ancient Jomon era. As the story played another thing that became apparent was how different the characters were being handled. They didn't easily fit into traditional fantasy/isekai roles and had a great deal of interpersonal dynamics. They were also multi faceted and realistic in their portrayals.
But what about the story its self? In the end it wasn't anything new or original. We have seen this type of story countless times and there is no shame in that. Whats special about Zenshu is how much love was put into it. This is truly a love letter to anime with an emphasis on its history. A lot of that is represented by Natsuko herself. Eeach week she creates a new animated scene to help them in their battles, constantly changing style. We see a nod to Gundam, Kinnikuman, bishonen harem, kaiju, etc. While the story its self is well hashed the way it handles it is invigorating and special. This is a really good anime and should be viewed by all manner of anime fans. There is a little room with the way it ends for the possibility of a movie but I suspect it will never happen and feel leaving things as they are is the best way to preserve the shows future legacy.
The series was simulcast on Crunshyroll.