Summer is officially in the rear-view mirror, and Fall is fast approaching. While the new season, which brings with it the return of hits like Spy x Family, One-Punch Man, My Hero Academia, and Chainsaw Man, doesn’t officially start until October, there’s still plenty of amazing new and old anime on Crunchyroll to help you pass the time before the start of spooky season. 2025 has already been packed with amazing new and returning anime, with some hidden gems slipping through the cracks. And, with all of the new releases, fans likely haven’t had time to dive back into their old watchlists or catch up on the classics.
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That’s where September comes in. It’s the perfect month to catch up on all the great anime you’ve missed and those major shows you’ve been meaning to get around to. What’s more, with the sunshine and heat waves slowly disappearing, and the cold weather approaching, what better time to hibernate indoors with some great anime? With that in mind, here are 10 amazing anime to binge on Crunchyroll this September.
10) Grimgar: Ashes & Illusions
The isekai boom might be slowly coming to an end (thank goodness), but some of the biggest and best shows in the genre have maintained their popularity. However, one isekai that is often forgotten by mainstream fans is Grimgar.
Based on the light novel series by Ao Jumonji, the series starts by following the typical isekai formula: characters wake up in a new fantasy world with little to no memory of their past lives. But that’s where the similarities end. Grimgar isn’t a mindless power fantasy or a means to include controversial and strange fan service (looking at you, Mushoku Tensei), it’s about as close to realism as an isekai will get. The protagonists don’t suddenly become great warriors; it takes them three episodes before they can kill a single goblin!
9) Hell’s Paradise
If you didn’t watch MAPPA’s Hell’s Paradise anime adaptation when it dropped in 2023, now’s your chance, because the eagerly awaited second season will be released next January. Hell’s Paradise comes with the quality animation you’d expect from a MAPPA project, has fight scenes that rival Demon Slayer and Jujutsu Kaisen, and potentially one-ups them with more interesting characters and a philosophically deep plot.
The show follows Gabimaru the Hollow, a dangerous shinobi who is set up by his village elder and arrested. After many failed execution attempts, Gabimaru is given a chance of freedom by retrieving the Elixer of Life from a mysterious island that no one has returned from.
8) Clevatess
Clevatess is one of the newer anime on this list. The series premiered as part of the Summer 2025 anime season, and was sidelined by the big hitters like Dandadan, Kaiju No. 8, and The Summer Hikaru Died. But the new dark fantasy anime is certainly worth your time, both for its Berserk-esque setting and violence, and surprisingly deep plot.
The show follows the eponymous Clevatess, one of the four great beasts that rule the outer rim of the world. For centuries, the humanoid races that inhabit the centre of the kingdom have tried to slay the beasts to expand their domains. But when a team attacks Clevatess, they decide that enough is enough, and journey into the humanoid realm to ask why humans are so desperate to kill it.
7) Hunter x Hunter (2011)
There has to be at least one classic on this list, and for September 2025, we have to recommend binge-watching Hunter x Hunter’s 2011 anime on Crunchyroll. Based on the classic manga by Yoshihiro Togashi, which first began serialization in 1998 and is still on hiatus, Madhouse’s anime adaptation is a certified classic in its own right.
The story should need little introduction, as Gon Freecss leaves home to become a “Hunter,” so he can journey to find his missing father, Gon. Hunter x Hunter is a must-watch for any anime fan, but it’s on this month’s recommendation because of the recent updates the manga has received. That’s right, Togashi is back at work, chewing through panels and pages for the new chapter.
6) The God of High School
Sometimes you just want a badass action series to dive headfirst into and take no prisoners. This September, The God of High School is that show. The series was released in 2020 and was a modest hit when it premiered. However, the series hasn’t maintained the levels of hype or popularity it deserves in the years since, what with the likes of Solo Leveling coming in and stealing the show.
The God of High School features the kind of bonkers plot that would only work in anime. The story follows Jin Mo-Ri, a 17-year-old high schooler who also happens to be an expert martial artist. Jin is unexpectedly invited to a martial arts tournament, known as The God of High School, to determine who is the strongest. But the truth behind the tournament is far shadier than Jin was ever expecting.
5) Lord of Mysteries
Is Lord of Mysteries technically an anime? No, it’s classed as a donghua (Chinese animation). Do we care? Absolutely not, because the hidden gem of Summer 2025 is absolutely worth your time, and you won’t regret a single second spent watching this gorgeously animated dark fantasy mystery on Crunchyroll.
Based on the Chinese web novel by Yuan Ye/Cuttlefish, Lord of Mysteries has slowly been gaining traction on social media, but more people need to check out this phenomenal series. Set in a steampunk version of Victorian England, Zhou Mingrui finds himself in the body of the recently deceased Klein Moretti. In his new body, Zhou must work out what happened to Klein, all while learning about his mysterious powers as a Beyonder.
4) Given
We’ve thrown a lot of action at you in this list so far, so let’s slow it down a bit with some musically-charged romance in a slice-of-life setting. Given is already one of the most popular BL romances out there, but fans are always looking for an excuse to rewatch the series and the movies, so let this list entry be that excuse.
Based on Natsuki Kizu’s manga, Given‘s anime was released in 2019 as a mini-series, before expanding into several feature-length films. The show follows four high school students in a band, and the slowly growing romantic entanglements between them. It’s a modern classic for a reason, so if you’ve never seen it before, what are you doing?!
3) The Heike Story
Time for another hidden gem. The Heike Story is, in this writer’s opinion, one of the most underrated anime of all time. Released in 2021 and animated by Science SARU (Dandadan), The Heike Story blends an emotionally devastating story with breathtaking animation and fight scenes that deserve a lot more love among the fan base.
Set in the 13th Century, the single-season series depicts the rise and fall of the Taira Clan. The show centers on Biwa, a war orphan with prophetic powers who is taken in by the Taira Clan. During her time with the clan, Heike foresees the downfall of the clan at the hands of the Minamotos.
2) Great Teacher Onizuka
Great Teacher Onizuka is a forgotten classic if ever there were one. While contemporary anime fans gush over the likes of Neon Genesis Evangelion, Akira, Dragon Ball, and Cowboy Bebop, Great Teacher Onizuka sits patiently in the corner waiting for the same love and attention. The show might feature some controversial moments that could make modern audiences cringe, especially in its opening episodes, but its tale of redemption and growth is a timeless one.
The show follows Eikichi Onizuka, a former biker who becomes a teacher at a prestigious middle school, the Holy Forest Academy. Attempting to put his days of violence and lusting behind him, which is harder than it seems at first, Onizuka gives his all to becoming a “Great Teacher,” and changing his life, and the lives of his students.
1) My Hero Academia
Coming up to its final season’s premiere on October 4th, My Hero Academia has seven solid seasons of action in a world full of legendary and aspiring superheroes. It’s the perfect anime for fans of Western superhero comic books to transition to, but it’s also a stellar battle shonen anime in its own right thanks to the keen vision of creator Kohei Horikoshi. It depicts a world thoroughly influenced by people with special powers, or Quirks, for better or, in some occasions, for far worse.
My Hero Academia stars Izuku Midoriya, who grows up Quirkless and without any remarkable abilities, yet a chance encounter with his superhero idol changes everything. Over the past seven seasons, we have seen Midoriya, aka “Deku” tackle deadly villains alongside fan-favorites at his superhero academy, U.A. High School and more, all animated by the incredible Studio Bones. Now is your final chance to get caught up on My Hero Academia before the final salvo of episodes beginning in October 2025.
Do you agree with the list? Have you seen any or all of the above shows? Which anime will you be watching this September? Let us know in the comments below.
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