With over 80 shows airing, anime fans have had an incredible selection of shows to choose from in the Spring 2021 season. From epic comebacks like theShaman Kingreboot to more obscure shorts likeDinosaur Biyori, there was something to watch for everyone.RELATED:Popular Anime That Are WAY Different Than The MangaWhile some shows were smashing hits others failedto meet fan expectations. Fans looking for the absolutegreatest anime of Spring 2021have plenty to pick from but a few gems sparkle brighter than the rest.Updated on June 01, 2025 by Mark Sammut:The Fall 2021 anime season is currently underway, bringing with it some of thebest anime of 2021. Overall, this year has been one to celebrate for anime fans, as the industry has produced dozens upon dozens of shows that are entertaining, unforgettable, and brilliant. In fact, this year produced so many good series that it is almost impossible to keep up with everything. So, while waiting for new episodes of Komi Can’t Communicate and Takt Op. Destiny to drop, people can go back to previous seasons to catch up on what they missed. Spring 2021 was particularly strong, so a couple of other memorable anime from that season have been added to this collection.
14SSSS.Dynazenon
Any anime by Trigger will attract some attention, butSSSS.Dynazenonflew somewhat under the radar by the studio’s standards. This was especially surprising considering it is a sequel to 2018’sSSSS.Gridman, a polarizing anime that still amassed a passionate fanbase.
SSSS.Dynazenonisn’t as exceptional as its predecessor, predominantly due to none of its characters leaving quite as big of an impression asGridman’s Akane. A sequel in name only,Dynazenonis very much its own beast, and its eponymous mecha is a sight to behold. The characters are fine but underdeveloped as most of the focus is squarely on the action. Unsurprisingly, the animation is fantastic, as is the music.
13Don’t Toy with Me, Miss Nagatoro
Don’t Toy with Me, Miss Nagatoro’s opening episode will put off quite a few people as it largely revolves around Hayase Nagatoro bullying her introverted senpai, Naoto Hachioji. It is not an easy sit since the anime fully showcases Naoto’s discomfort; thankfully, Hayase does tone down her mockery quite quickly, opting for a more playful style. Be that as it may, the teasing never fully subsides, so that might still be a dealbreaker for some viewers.
Eventually,Don’t Toy with Me, Miss Nagatoroslowly begins to redeem Hayase as it becomes more of a standard romance.
12Welcome to Demon School! Iruma-kun 2nd Season
Welcome to Demon School! Iruma-kunwas one of the best surprises of 2019, and its sequel is even better. Iruma, a human, is sold to a demon by his parents. His new caregiver enrolls Iruma in a demon school, Babyls, which is naturally not the greatest place for a human with terrible luck.
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Like its predecessor, season 2 is just a whole lot of fun. Iruma’s misadventures are wild, comedic, and creative, while the anime also allocates time to develop its overarching plots and romances.
11Zombieland Saga: Revenge
Zombieland Sagaopened up theidol anime genreto a wider audience, delivering a lovable cast of characters along the way. The sequel delivers more of the same in terms of banter and songs, all the while diving deeper into the mythos surrounding this universe. While the anime keeps certain things close to its chest, this season does slightly pull back the curtain on why these girls have been brought back to life (sort of).
Zombieland Saga: Revengehas far better musical sequences than its predecessor, and the show is still as funny as ever.
10Tokyo Revengers
A lot of people would love to relive their glory years, especially if their current life wasn’t going according to plan. That’s exactly what happens to Takemichi Hanagaki who slowly discovers he can manipulate times and uses this power to change the worst events of his life. Directed by Hatsumi Kouichi, the director ofDeadman Wonderland,Tokyo Revengersis incredibly engaging for a time travel story.
9Moriarty The Patriot (Yuukoku No Moriarty)
With the original season being highly regarded,Moriarty the Patriothad a lot to live up to and managed to without a single issue. While there are many stories from the perspective of Sherlock Holmes, there are far too few from the viewpoint of his arch-nemesis James Moriarty. It’s the perfect show to tune into for any fans of psychological thrillers.
8Higehiro: After Being Rejected, I Shaved And Took In A High School Runaway
A show with a mouthful of a title,Higehirofocused on the drama surrounding a traumatized teenage girl that ran away from home before meeting Yoshida. His life begins to significantly improve as he takes her in and keeps Sayu safe despite the dangers of taking in a young runaway.
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The wholesome moments of Yoshida standing up to do the right thing and Sayu slowly finding her way towards happiness resonated with many anime fans. The show is perfect for anyone wanting a story packed with character growth.
7Fruits Basket: The Final
The originalFruits Basketanime aired all the way back in 2001 so fans were excited to seethe romance seriesget a reboot in 2019. The animators seriously improved the visuals compared to the original making this retelling wonderful to experience. As implied by the title,The Finalwas the last season of the reboot and was one of the most-watched shows of the season.
Joe’s original adventures battling his way to the top of the Megalo Boxing world with no gear was incredibly compelling and the sequel is even more so.Nomadshows what happens after the ultimate dream is achieved and the hardships that befall Team Nowhere after.
The final match and everything building up to it are incredibly emotional so make sure to keep tissues nearby when watching this one.
5My Hero Academia (Boku No Hero Academia)
It’s hard to not loveMy Hero Academiaas its fifth season kept building upon the impressive story that came before it. There’s a reason it continues to be one of the most-watched anime on television after all!
The majority ofMHA’sshowing in the Spring 2021 season followed a tournament arc of sorts as Midoriya tries to grapple with the new powers granted to him thanks tohis quirk One For All.
