Iruma-kun is a story about a demon school, and through a psychologist's eyes it is a story about attachment forming again. A boy sold by his parents learns, a little at a time, to refuse things and to lean on someone, inside the unconditional love of his grandfather in the netherworld. Iruma's growth is a straight description of what happens when an unloved child gets a secure base.
This page reads 8 Welcome to Demon School! Iruma-kun characters through three layers: MBTI as the outward personality, attachment style as the hidden side, and a Big Five type. Rather than simply assigning a type, Why this type from what they do in the story and where they came from — that is how this site works.
📊 Attachment styles across the Welcome to Demon School! Iruma-kun cast
The comparison baseline is the attachment split across 42,256 quiz responses: 30.1% secure, 15.5% anxious, 13.7% avoidant, 40.6% fearful-avoidant.
Iruma, Asmodeus and Ameri line up among the leads as anxious types who have gone on meeting expectations, while Sullivan and Clara are placed as the secure ones who accept without conditions. Those on the accepting side are what this work's gentleness actually consists of.
🧩 Reading the relationships in Welcome to Demon School! Iruma-kun through attachment
Welcome to Demon School! Iruma-kun draws carefully the process of receiving unconditional love for the first time. Iruma, sold by his parents, cannot say no — not out of kindness but as the result of learning. Sullivan's excessive spoiling reads as the quantity required to write that learning over. Alikred's absolute loyalty, Ameri's history of meeting expectations, Clara's complete lack of any cloud. Each has a different shape of attachment, and the differences show up as friction in school life.
📖 Character list (tap to jump)
The artwork is 16 MBTI types × 4 attachment styles = 64 combinations character images. When the same picture appears twice, those two match all the way down to the 64-type level.
😇 Iruma Suzuki: MBTI ISFJ, attachment anxious
The ultimate good-natured person who doesn't resent being sold by his parents. The reason I can't refuse a request is because I've lived in a world where if I refused, I would be thrown away.
MBTI radar (ISFJ dominant four axes + attachment stability)
Big Five radar (five factors + hidden-side axis)
Why Iruma Suzuki is ISFJ × anxious
Cannot say no when asked, and the consideration moves before he does — the ultimate good soul, an ISFJ of introverted sensing with extraverted feeling (Si-Fe) who reads the room.
🔥 Asmodeus: MBTI ISTJ, attachment anxious
Absolute loyalty to Iruma-sama. The perfect son of a prestigious family fell in love with the first person he ever lost to.
MBTI radar (ISTJ dominant four axes + attachment stability)
Big Five radar (five factors + hidden-side axis)
Why Asmodeus is ISTJ × anxious
The flawless manners and the training of a great house — an ISTJ of introverted sensing (Si-Te), pride and form. His absolute loyalty to Iruma-sama, the first person to beat him, is the first master a boy who had only ever met his family name's expectations chose for himself: single-minded anxiety in the shape of loyalty.
🍭 Clara: MBTI ENFP, attachment secure
A beloved child with endless sweets coming out of his pocket. Let's play, let's play with all our might, and are loved by our families as a form of self-affirmation.
MBTI radar (ENFP dominant four axes + attachment stability)
Big Five radar (five factors + hidden-side axis)
Why Clara is ENFP × secure
The invention and the momentum to pull an endless supply of games out of a pocket dimension — play made flesh, an ENFP of extraverted intuition (Ne).
🎩 Sullivan: MBTI ENFP, attachment secure
Even though he is a big name in the demon world, his grandchild is completely stupid. The strongest safe base in the story, pampering Iruma unconditionally.
MBTI radar (ENFP dominant four axes + attachment stability)
Big Five radar (five factors + hidden-side axis)
Why Sullivan is ENFP × secure
The ability of one of the netherworld's three great figures, and the mischief of a man besotted with his grandson — an ENFP of extraverted intuition (Ne), with a heavyweight's ease. He spoils Iruma with no calculation in it and loves him unshaken through any failure. The strongest supplier of unconditional acceptance in the work, and the ground Iruma's attachment re-forms on.
📕 Ameri: MBTI ESTJ, attachment anxious
The dignified face of the student council president and the face of a young girl who is swayed by her first love. Our strength lies in our history of continuing to meet expectations.
MBTI radar (ESTJ dominant four axes + attachment stability)
Big Five radar (five factors + hidden-side axis)
Why Ameri is ESTJ × anxious
A student council president's authority, competence and swordsmanship — an ESTJ of extraverted thinking (Te) who has gone on meeting expectations. The history of her strength is also the history of what was expected of the president's daughter, and the drop back into a girl in front of a first love is the real thing. An anxious type who started practising showing weakness through being in love.
🐾 Opera: MBTI ISTP, attachment avoidant
The perfect butler's expressionless face. Although they don't close the distance, they have the calmness of a professional who never misses work and escort.
MBTI radar (ISTP dominant four axes + attachment stability)
Big Five radar (five factors + hidden-side axis)
Why Opera is ISTP × avoidant
Flawless service, flawless presence, and the ability to fight — an ISTP of introverted thinking with extraverted sensing (Ti-Se), with nothing wasted.
🦜 Balam: MBTI INFJ, attachment secure
A kind teacher who can see through students' lies and anxieties. Beneath the fearful appearance lies a deep acceptance.
MBTI radar (INFJ dominant four axes + attachment stability)
Big Five radar (five factors + hidden-side axis)
Why Balam is INFJ × secure
Sees through a student's lies and their anxiety alike, and keeps a distance all his own that soothes — an INFJ of deep acceptance, introverted intuition with extraverted feeling (Ni-Fe).
🎈 Kirio: MBTI INTP, attachment fearful-avoidant
A fun criminal who wants to destroy the boring world. A heart that doesn't believe in connections has made destruction its only entertainment.
MBTI radar (INTP dominant four axes + attachment stability)
Big Five radar (five factors + hidden-side axis)
Why Kirio is INTP × fearful-avoidant
The mind to find the holes in the school's rules, and the perversity of taking destruction as entertainment — the brilliant INTP of introverted thinking (Ti-Ne), turned inside out.
❓ Frequently asked questions
How many Welcome to Demon School! Iruma-kun characters are listed here?
Welcome to Demon School! Iruma-kun currently has 8 characters listed. Each one carries MBTI, attachment style and a Big Five type, with the reasoning for the call. (Iruma Suzuki, Asmodeus, Clara and others)
Which attachment style is most common in Welcome to Demon School! Iruma-kun?
Of the 8 listed here, the most common is anxious at 3 (38%). On MBTI, ENFP leads with 2. Ways of keeping distance differ even inside one work, so the same MBTI does not mean the same way of relating to people.
Is this type assignment official?
Not official. This is our editorial reading, based on actions and descriptions in the work. It is not a psychological diagnosis and not the view of the people or studios involved.
Can I find out my own type?
A free 46-question quiz crosses the 16 MBTI types with the 4 attachment styles into 64 types. No sign-up. Reading it against the Welcome to Demon School! Iruma-kun cast makes your own way of keeping distance easier to see.
46 QUESTIONS
Who in Welcome to Demon School! Iruma-kun are you closest to?
You are placed in one of 64 types, MBTI crossed with attachment style.
About five minutes. No registration. Free.
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So which of them is closest to you
Among the 8 characters in this work, the most common attachment style is Secure, with 3 (38%). The most common MBTI is ENFP. Once you know your own combination, the same list starts showing you who you are close to.
Seen from the outward personality Big Five test, and how you match your favourite Compatibility.
This type reading is not official. It is our own estimate from each character's publicly known words and actions, offered for entertainment.