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Western anime fans often wonder why a character's blood type is almost always included in their manga profiles. In Japan, people use blood types as a compatibility test, similar to how Westerners use astrology or Myers-Briggs Types.
Each blood type is associated with a specific set of personality traits and habits. If someone has blood type O, for example, they have excellent intuition and a cheerful personality that makes it easy for others to like them. In anime, many characters with blood type O are the protagonists of their series. They're one of the most beloved side characters if they aren't the protagonist.
10 Akiko Yosano Is A Hard Worker Who Enjoys The Morbid Side Of Life (Bungou Stray Dogs)
Akiko from Bungou Stray Dogs is the physician for the Armed Detective Agency. Her ability, Thou Shalt Not Die, allows her to heal people near death.
Akiko is a hard worker. She carries herself with poise and takes pride in her job. She keeps her cool most of the time, but those who make the mistake of angering her will surely meet her violent side. Akiko also enjoys indulging in the morbid side of life. One of her hobbies is dismembering her patients with an eerily happy-go-lucky smile before using her power to heal them.
9 Taro Kabakura Always Sees The Bright Side (Wotakoi: Love Is Hard For Otaku)
Taro from Wotakoi: Love Is Hard For Otaku takes his job seriously, but that doesn't mean he can't have a good sense of humor. He always looks for the bright side of things and makes a joke out of every situation. Some say he seems intimidating at first because of his piercing eyes.
Taro is dating Hanako, and though they bicker a lot in public, they love each other. Nothing can tear them apart. Taro is also an otaku whose favorite type of anime revolves around cute girls doing cute things.
8 Haruhi Fujioka Is A Natural Charmer (Ouran High School Host Club)
Haruhi from Ouran High School Host Club has a pretty aloof, straightforward personality. She doesn't see the point in beating around the bush, so she tends to be brutally honest. Though she's a biological female, she believes that gender is irrelevant and doesn't have an issue with dressing androgynously or more masculinely.
After joining the Host Club, customers and the other members fell for her because she has a natural way of charming people by being her authentic self. Haruhi tends to be the voice of reason amid the club's antics.
7 Armin Arlert Is Always Curious (Attack On Titan)
Attack On Titan's Armin Arlert has always been curious about life outside the walls. Even though he was ridiculed by everyone else for his interest in it, he always stayed optimistic that one day, he would explore the land outside the walls with his friends.
Though Armin was timid and insecure after joining the Survey Corps, he proved himself a valuable member. He's an expert strategist and takes pride in being able to help others with his problem-solving skills. Armin is selfless and wouldn't hesitate to lay his life on the line for his comrades.
6 Spike Spiegel Is Laidback & Street-Smart (Cowboy Bebop)
Cowboy Bebop's Spike Spiegel is a street-smart badass, despite his lazy reputation. He's one of anime's best gunslingers and has proven himself a reliable bounty hunter. He has a laidback, go-with-the-flow mentality, and it's hard to faze him. However, he constantly recalls his past and finds it hard to let things go.
Despite Spike's detachment from others, slothful behavior, and constant complaining, Spike's got a heart of gold and is entirely devoted to the cause. He's the type to lend a helping hand and not expect anything in return for his good deed.
5 Tohru Honda Is Optimistic & Loves Unconditionally (Fruits Basket)
Tohru Honda from Fruits Basket is one of the most lovable shojo protagonists. It's hard to dislike her. She's optimistic and cheerful, and instantly lifts the spirits of everyone around her. She has a healing personality and always knows the right thing to say.
Tohru loves others unconditionally and chooses to see the best aspects of someone's personality instead of the worst. Tohru lost both of her parents and had to live in a tent for a while. She always expresses gratitude for even receiving the bare minimum and never takes anything for granted.
4 Atsushi Murasakibara Has A Childish Attitude & Major Sweet Tooth (Kuroko's Basketball)
Atsushi Murasakibara from Kuroko's Basketball is among anime's laziest characters. Though he stands at 6'1, he has a childish personality that doesn't match his intimidating appearance. He's also always seen carrying bags of sweets and eating all the time. He spends all of his money on junk food.
Murasakibara claims that he hates basketball and only plays because he's good at it. By extension, he despises people who play passionately. However, the truth is that Murasakibara pretends to be unfazed by the sport because he knows that if he were to go all-out, he'd risk injuring someone.
3 Usagi Is Friendly & In Touch With Her Emotions (Sailor Moon)
Though some criticize Usagi for being too much of a crybaby, it's admirable that she's so in touch with her emotions. Throughout Sailor Moon, Usagi has proven that she's so much more than just a whiny, naive teenager.
Usagi always sees the best in others and can befriend people from all walks of life. She's even tried to become friends with her enemies and talk them down from making catastrophic mistakes. Plus, Usagi is always optimistic and never gives up on something once she starts. She may be a notoriously awful cook, but that's never stopped her from returning to the kitchen to try again.
2 Kakashi Hatake Is Perceptive & Aloof (Naruto)
Kakashi is the Copy Cat ninja in Naruto. He was Team 7's mentor for years and instantly became a fan-favorite character thanks to his cool aesthetic and aloof personality.
Though Kakashi acts perpetually bored and never fails to arrive fashionably late, Kakashi is more observant and intuitive than he lets on. He's incredibly wise and has a knack for reading the room. Though he doesn't need anyone to back him up, Kakashi understands the value of teamwork and tries his best to impart this knowledge to Team 7.
1 Izuku Forged His Own Path Toward Heroism (My Hero Academia)
My Hero Academia's Izuku Midoriya has had an inspiring underdog tale. He was a quirkless boy who nevertheless dreamed of being a hero. Then, he received a seriously overpowered quirk from his lifelong role model. He went through strenuous training, even breaking his limbs repeatedly to master the quirk. When he thought he got the hang of it, he discovered that he had six more potential powers bubbling under the surface.
Izuku's story is empowering. He forged his own path towards heroism and never forgot why he started. Despite undergoing several trials and tribulations, Izuku remained a kind-hearted person who always saves people with a smile.