Seinen manga and anime refer to media targeted at young adults and adult males. Within this category, you'll find a variety of genres, from gritty fantasy to cozy slice-of-life. However, in general, seinen has a slightly more mature feel than shonen, making it suitable for an older audience.

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Wondering what the best seinen anime is? In this list, we will take a look at some of the best Seinen anime and rank them. It's important to remember that there is no objective 'best' in any genre of animation. Just because the person you like isn't here doesn't mean it's bad!
9 psychopath
First, there are psychopaths. This is a science fiction seinen set in a world where even thinking about committing a crime makes you guilty. The overall tone of this anime is dark and dystopian, making it perfect for those looking for a show that's a bit grittier than other anime.
If you're a fan of movies like Minority Report, Psycho-Pass is right up your alley. Both media approach crime in similar ways, but both are unique enough to be worth a watch!
8 Kaguya: Love is war
Kaguya-sama: Love Is War is an interesting addition to this list because, although it is a seinen, it could appeal to a wide range of people. Animation has something for everyone. Humor, romance, lovable characters, and a bizarre scenario set in a school for the ultra-rich.
Overall, the core of Kaguya-sama: Love is War revolves around the growing love between the two main characters, but the episode-by-episode antics and comedic narration make the anime more than just a high school romance.
7 kingdom
Kingdom is a long-running comic and animation set in a fictionalized version of China's Warring States Period around 220 BC. Although the events are fictional, the characters are identical to real people, such as military general Li Xin.
The Kingdom will follow Lee Sin on his journey to become the Kingdom's greatest general. His ultimate goal is to become emperor, but this doesn't go smoothly or quickly, so you'll be able to follow along for well over 100 episodes.
6 Parasite: Maxim
Parasty follows Shinichi, who lives in a world where alien life forms have invaded Earth. Instead of giving in to the violent creatures, Shinichi befriends Migi, an alien who somehow becomes his right hand man.

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Together, the two fight off other parasites they encounter. But make no mistake. Parasyte is a horror anime full of creepy monsters and creepy animations. It's not necessarily scary, but it's definitely brutal and gruesome.
5 Mushishi
Next is Mushishi. The anime follows Ginko, a supernatural warrior who travels to learn more about herself. This includes the journey of helping others and ultimately finding meaning in one's own life.
Mushishi is unique among anime in its handling of supernatural concepts. Rather than being a hero or chosen one, Ginko is simply a relaxed person trying to understand both himself and the world around him.
4 fierce
At this point, most of us know what Berserk is. If you haven't seen it yet, take this as a cue to start. Berserk follows Guts on his quest for revenge. Although many people think the anime is inferior to the manga, it is still worth watching, especially if you read the manga first.
First, check out the original animated series from 1997. The latest series, which came out in 2016, has often been criticized for its poor use of CGI. But if you want to experience as much of Berserk as possible, it's worth watching.
3 Vinland Saga
The Vinland Saga throws us into the land of the Vikings and follows the main character, Thorfinn. Along the way, you can experience the hardships Thorfinn faces. Overall, Vinland Saga is filled with great character development, amazing writing, and a compelling plot.

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This anime does a great job of weaving together the violence and history of the Vikings in a way that leaves you wanting more after every episode.
2 March comes like a lion
Doing a complete 180 on Vinland Saga, we have March Comes In Like A Lion. Set in modern-day Tokyo (Shinkawa, to be exact), the show follows Rei Kiriyama. Kiriyama, who lives alone without any family, is also a professional chess player.
March Comes In Like A Lion is my favorite anime on this list! The story is very compelling and moving and will stay in your mind for a while.
March Comes In Like A Lion deals with serious themes and drama, showing the life of an introverted young man trying to survive in the world. If you've ever struggled with depression or anxiety, March Comes In Like A Lion is worth watching.
1 monster
First there are the monsters. The show is incredibly popular, but sometimes it can be a bit underrated. Monster follows along with Dr. Tenma, who starts out as a brain surgeon. Of course, things don't go as planned, and Tenma is accused of being a serial killer.
It's hard to say much about Monster without spoiling the plot, but just know that the show has 74 episodes filled with phenomenal storytelling and character development. Overall, Monster is a must-see for any anime fan.

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