Ultimate Exorcist Kiyoshi Chapter 109: Release Date, Authentic 108 Memento Forest Recap, and New Theories
Ultimate Exorcist Kiyoshi Chapter 109 is shaping up to be one of the more interesting chapters of the Exorcist Academy Arc. Chapter 108 looked like a fairly straightforward rescue story at first, but it quickly turned into something much more important for the manga’s larger mystery. We got a dangerous forbidden forest, a student struggling under the weight of his family name, Kiyoshi casually stopping a Super-Class Monster, and, right at the end, a name that changes the entire conversation: Professor Yagi.
As someone who genuinely enjoys manga that can mix ridiculous comedy with surprisingly serious character writing, I thought Chapter 108 worked extremely well. The Memmy reveal is hilarious on the surface, but the Kitano storyline gives the chapter some real emotional weight. And that final mention of Yagi? That is the part I can’t stop thinking about.
Ultimate Exorcist Kiyoshi Chapter 109 Release Date
Ultimate Exorcist Kiyoshi Chapter 109 is scheduled to release on Sunday, September 20, 2026. Fans will be able to read the new chapter through official digital platforms, including Shueisha’s MANGA Plus and VIZ Media’s Shonen Jump service.
For readers in the United States, the expected digital release times are:
- Pacific Time: 8:00 AM
- Central Time: 10:00 AM
- Eastern Time: 11:00 AM
Obviously, release schedules can sometimes be affected by publication changes, but assuming the current calendar holds, Chapter 109 should arrive worldwide on September 20.
Chapter 108 Recap: What Actually Happened in the Memento Forest?
Chapter 108 takes the story away from the normal academy environment and into the restricted Memento Forest. This immediately gives the chapter a different atmosphere. There is a sense that the forest isn’t simply another dangerous location, but somewhere connected to the academy’s deeper secrets.
The chapter begins with Kitano entering the forbidden area alone. He isn’t there because he wants to show off for no reason, either. Professor Tsuge had apparently mentioned the Memento Forest shortly before disappearing, and Kitano becomes convinced that the forest might contain a clue about what happened to him.
That decision tells us a lot about Kitano. He is determined, but he is also clearly trying too hard to prove that he can handle things without anybody’s help.
Kitano vs. a Super-Class Monster
Things go bad almost immediately.
Kitano encounters an enormous horned creature with claws, multiple eyes, and a genuinely terrifying appearance. The creature is identified as a Super-Class Monster, putting it far beyond what Kitano should realistically be dealing with alone.
The monster attacks, smashing through the surrounding trees and knocking Kitano backward. When it prepares to finish him off, Kitano realizes that he is completely outmatched.
And then Kiyoshi arrives.
One of the funniest moments in the chapter comes when Kiyoshi simply drops into the scene and stops the monster’s massive attack with what is essentially a gigantic high five. It is exactly the kind of absurd flex that makes Kiyoshi so entertaining. The manga doesn’t need a long explanation of his strength. He just casually does something that should be impossible.
Memmy Is Not the Monster We Thought He Was
Then comes the joke that completely changes the scene.
The supposedly terrifying Super-Class Monster turns out to be Memmy, Kiyoshi’s enormous and surprisingly friendly companion. Instead of eating everyone, Memmy starts licking Kiyoshi’s face while Kiyoshi laughs it off.
I honestly loved this reveal because it is such a Kiyoshi moment. The story spends time making the creature look like an unstoppable horror, only for Kiyoshi to essentially say, “Oh, that’s just my friend.”
It also reinforces an important part of Kiyoshi’s character. He doesn’t automatically judge supernatural creatures by how frightening they look. His relationship with Memmy suggests that the world of exorcism is considerably more complicated than simply dividing everything into “humans” and “monsters.”
Kitano’s Family Name Is His Biggest Burden
Once the immediate danger disappears, Chapter 108 becomes much more personal.
Kitano explains why he went into the forest alone. He is the grandson of Kunikara Kitano, a legendary former Cross Paladin who died during a final battle. That legacy has followed Kitano throughout his life.
People don’t simply see Kitano as Kitano. They see the grandson of a famous exorcist.
That distinction matters.
Kitano admits that the family name has effectively become a curse. He wants to live up to his grandfather, but at the same time he desperately wants people to recognize him as his own person. His reckless decision to enter the Memento Forest is therefore about much more than Professor Tsuge. It’s about proving that he can do something important by himself.
This was probably my favorite part of Chapter 108. Underneath all the supernatural action, the chapter is really about identity and expectations. That’s something I think Ultimate Exorcist Kiyoshi handles better than people sometimes give it credit for.
Kiyoshi responds in his usual straightforward way. He doesn’t give Kitano some huge inspirational speech. Instead, he points out that friends have helped him and that there are people who don’t judge Kitano simply because of his family name.
It’s a small conversation, but it could become a major turning point for Kitano.
The Professor Yagi Cliffhanger Changes Everything
The final pages are where Chapter 108 suddenly becomes much more mysterious.
After leaving the forest, Kitano is questioned about why he entered a place that students aren’t supposed to access. His answer is the real bombshell: he was allowed into the Memento Forest by Professor Yagi.
That changes the situation completely.
Until this point, Kitano’s actions could be interpreted as reckless student behavior. But if a faculty member deliberately gave him permission to enter a restricted area, then someone inside the academy knew what was happening.
And Kiyoshi’s stunned reaction makes the reveal even more interesting.
| Chapter 108 Mystery | Why It Matters |
|---|---|
| Professor Tsuge’s disappearance | He mentioned the Memento Forest before vanishing. |
| Kitano’s forest visit | He entered while searching for answers about Tsuge. |
| Professor Yagi | He apparently authorized Kitano’s access. |
| Kiyoshi’s reaction | Suggests Yagi may have a deeper connection to the protagonist. |
My Biggest Theory for Chapter 109
If I had to bet on one theory, I’d keep a very close eye on Professor Yagi.
I don’t necessarily think the story will immediately reveal him as an outright villain. That would actually feel too simple to me. There is a much more interesting possibility: Yagi knows something about the Memento Forest and Professor Tsuge that the academy’s students aren’t supposed to know.
Perhaps he deliberately sent Kitano into the forest because he knew Kitano would investigate Tsuge’s disappearance. Or maybe Kitano was unknowingly being used to trigger something inside the restricted area.
The second possibility I find especially interesting is that Professor Tsuge’s disappearance and the Memento Forest are directly connected. If Tsuge deliberately mentioned the forest before disappearing, it is hard to believe that detail was random.
Chapter 109 could therefore start by investigating exactly what Tsuge was looking for. I wouldn’t be surprised if Kiyoshi, Akari, and Kitano discover that the academy has been hiding information about the forest for much longer than they realize.
Could Kiyoshi and Yagi Have a History?
This is the theory I’m most curious about, even though there isn’t enough evidence to call it fact.
Kiyoshi’s expression in the final panel is much stronger than a normal “wait, that teacher?” reaction. It makes me wonder whether Professor Yagi has some connection to Kiyoshi’s past, his training, or perhaps something involving his family.
It could be a flashback. It could be something much smaller, such as Kiyoshi remembering a previous warning from Yagi. But if the author wants to make this reveal genuinely personal, Chapter 109 is the perfect opportunity.
And honestly, that’s what I want from the next chapter. We already know Kiyoshi is incredibly powerful. The more interesting question is what he doesn’t know.
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What I Expect From Ultimate Exorcist Kiyoshi Chapter 109
- Professor Yagi’s motives should become the central mystery.
- Professor Tsuge’s disappearance will likely receive another clue.
- The Memento Forest may contain information the academy has deliberately concealed.
- Kitano could begin overcoming his obsession with his grandfather’s legacy.
- Kiyoshi’s reaction to Yagi may reveal an important piece of his own history.
Final Thoughts
Chapter 108 was a surprisingly strong setup chapter. It had the comedy you’d expect from Ultimate Exorcist Kiyoshi, especially with Memmy turning a terrifying monster encounter into a ridiculous pet reunion, but it also gave Kitano a much-needed emotional foundation.
More importantly, the chapter connected several loose threads. Tsuge, the Memento Forest, Kitano’s family legacy, and Professor Yagi are now sitting in the same mystery, and that makes Chapter 109 feel much more important than a simple continuation of the academy storyline.
My biggest hope is that the manga doesn’t rush the Yagi reveal. Let the mystery breathe a little. If Yagi really is hiding something, I want the story to make us question his motives before giving us the full answer.
For now, Ultimate Exorcist Kiyoshi Chapter 109 has one of the most intriguing setups in this current arc. After the final page of Chapter 108, I definitely want to know what Professor Yagi was doing in the Memento Forest — and, more importantly, why Kiyoshi looked so shocked when he heard his name.
