[Personality Test & Blood Type Diagnosis] Check your personality and compatibility with your crush!
People have long whispered that personality differs by blood type—like “Type A people are meticulous” and “Type O are laid-back”—but in fact, there’s no scientific basis for this at all! Still, perhaps because of ingrained stereotypes, many people readily accept statements like “this blood type tends to be like that.” In this article, we’re setting aside the fact that there’s no scientific evidence and have gathered blood type quizzes and psychology tests related to blood types that you can enjoy as a game.
Please enjoy them casually!
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- [Personality Test] A Must-See for Those with a Crush! A Love Diagnosis to Boost Your Romance Luck
- Can you see the hidden true nature you haven’t noticed? A psychology test that reveals your personality.
- [What Are Your Romantic Tendencies?] A Psychology Test to Learn How to Find Someone You Like
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- [Personality Test] Fun and Entertaining! Carefully Selected Tests That Everyone Can Enjoy Together
- [For Women] A roundup of psychological tests that reveal your love life and personality
- [Perfect for parties and group dates] Love, compatibility, and personality psychology tests
- Are you okay? A diagnosis of the types you dislike and how much you’re disliked
[Personality Test & Blood Type Diagnosis] Check Your Personality and Compatibility with Your Crush! (21–30)
Love circumstances by blood type

An anime-style explanation of those familiar love-life patterns by blood type.
Of course, you can’t diagnose someone’s personality clearly just from their blood type, but by analyzing phenomena like “People of type XX often do this when they’re in love,” you’ll find yourself thinking “I see,” having a laugh, and enjoying it.
Knowing each personality—impulsive, sincere, romantic, and so on—also changes how and when to confess your feelings.
Using this video as a reference, it’s a good idea to identify the points to watch for by blood type and the effective ways to win someone over, then make a plan and give it a try!
Personality and romantic tendencies by blood type

We present a diagnostic guide that reveals personality traits and romantic tendencies based on blood type.
It offers detailed explanations of how you tend to work and how you progress toward your goals.
In addition to highlighting your characteristics and strengths, it also points out areas to be mindful of, such as being considerate of those around you.
In terms of romance, it assesses tendencies like being passionate or prioritizing relationships, and even tells you your preferred type and dating styles.
Working through it with a significant partner can help you reaffirm each other’s feelings and provide an opportunity to reflect on your approach to work.
[Personality Test & Blood Type Diagnosis] Check Your Personality and Compatibility with Your Crush! (31–40)
A personality test to reveal your hidden blood type

Are you familiar with Mendel’s “laws of inheritance”? Or rather, since everyone should have learned them in middle school, we’re all supposed to “know” them.
Dominant traits, recessive traits—yes, that stuff.
They gave me quite a headache back in my student days.
What I’m introducing here is a more detailed blood type assessment than the usual four categories—for example, even within type A, there’s an A that tends to come from lineages with many type O ancestors, or an A that leans toward AB, and so on.
It takes a bit of time because you answer 20 questions, but it’s recommended for those who enjoy blood type fortune-telling.
Give it a try when you have some spare time!
O-type instruction manual psychological test

Kana Nishino’s “Torisetsu” has become a staple song at weddings.
The lyrics, which sum up a woman’s sweet, needy feelings—“I’m this delicate, so I want you to always put me first”—are brilliant.
In that sense, you really feel how important a ‘user manual’ can be.
So here’s a user manual just for Type O folks.
It’s highly recommended if your friends, acquaintances, or especially your partner is Type O! Reading this might even reduce how often you argue.
It’s also a must-read for Type O people who don’t fully understand themselves.
Knowing yourself really is important.
A User’s Manual for Type B: The Psychology of Love

Type AB is said to account for 9% of Japan’s population.
Which celebrities have it? Among actresses, there are Suzu Hirose and Kanna Hashimoto.
In comedy, Asako Ito and Kanpei Hazama have it, and both members of the duo Ucchan Nanchan are AB.
Among artists, you’ll find big names like Gen Hoshino and Daichi Miura.
Looking at this lineup, it seems like they’re a collection of distinctive people who, in a good way, don’t fit neatly into any one box.
What do you think? This is recommended for anyone who wants to learn more about type AB.
It’ll surely make you chuckle.
A psychology test to guess your blood type

Even if you don’t really believe in blood type horoscopes, when you meet a meticulous person you can’t help thinking, “Are they type A?” I happen to be surrounded by a lot of quirky people, and many of them tend to have the less common blood types.
Even though each type has a one-in-four chance, it’s still impressive when someone guesses a blood type right on the spot.
I think you’ll have a great time with this, so try it out with close friends.
This personality quiz will surely come in handy in almost any situation—welcome parties, socials, you name it!
A must-see for Type A: Deep psychology test

A quintessential music playback device of the Showa era—the cassette tape.
We used to pack our favorite songs into a cassette, just a bit bigger than a business card, and trade them with friends.
I wonder if that resonates with the younger generation today… The terms “Side A” and “Side B,” just like with records, also carry a nostalgic ring.
Speaking of front and back, there’s even a “front/back” style diagnosis for blood types that reveals the dual nature of each type.
Who would’ve thought that even Type A—often seen as serious and meticulous—has an unexpected flip side! It’s a great blood type test that lets you discover your own two-sided nature.



