Iruma Suzuki

Iruma Suzuki is 158 cm tall (165 cm including his antenna-like hair) and weighs 56 kg.

He is a small boy with a cute, androgynous face, and is sometimes mistaken for a girl when dressed up.

His most recognizable feature is the antenna-shaped hair.

His eyes are bright blue, and he often wears the standard Babyls school uniform.

Iruma is extremely kind and a huge people-pleaser.

He can never say "no" to any favor, making him extremely helpful but also easy to push around.

He is quick to adapt and has an almost superhuman ability to survive dangerous situations.

Iruma is humble and used to hiding so much that, at first, he doesn’t think about what he wants—only what others need from him.

With time, he learns to desire things for himself, saying he wants to "pick up everything" and "live in the demon world".

Iruma's kindness makes many friends and even wins over teachers and school staff.

He is very earnest and does not like to waste things.

He is also very innocent and reacts honestly to new experiences.

Iruma was born in the human world to neglectful and selfish parents.

He spent his childhood doing dangerous jobs, being abandoned, and rarely attending school.

At the age of 14, his parents sold him to the great demon Sullivan, who adopts him as his grandson.

In the demon world, Iruma is loved by Sullivan and Opera, who care for him far more than his real parents ever did.

For the first time, Iruma experiences a happy home and real friendships.

Iruma has "ultimate crisis avoidance skills," and seems almost impossible to hit or hurt.

His defense is said to be "infinite," while his attack power is zero.

He has learned skills like aikido, survival tricks, and even machine repair to deal with his tough life.

Iruma is also a huge eater due to his past poverty—he eats whenever food is available.

He is not good at cooking and just throws everything into a pot.

He possesses a ring called the "Ring of Gluttony," which contains Sullivan's magic and lets Iruma use powerful spells.

However, he tries not to rely on this magic unless he has to.

Iruma develops magic archery skills after being trained by Bachiko Barbatos.

As a human, even a drop of his blood can heal any wound or even help others grow—but he cannot reveal this secret.

He also has the magical partner Alikred (Arisan), the avatar of his ring, who acts as both a guide and comic relief.

• Sullivan: His adoptive grandfather and great demon, who loves Iruma dearly.
• Opera: Sullivan’s butler, who also treats Iruma with great care and protects him.
• Alice Asmodeus and Clara Valac: Iruma’s closest friends and classmates, often called "Team Iruma."
• Kalego Naberius: Iruma's grumpy teacher and his familiar (albeit unwillingly, sometimes as a chick).
• Bachiko Barbatos: His stern archery mentor.
• Many classmates: He gradually wins over almost everyone, even making some rivals and "accidentally" attracting both boys and girls.
• Many teachers and school staff also end up fond of Iruma.

• Birthday: October 4 (“Angel’s Day”)
• Age: 14 at first appearance, 15 currently
• Height: 158 cm (165 cm with hair)
• Weight: 56 kg
• Gender: Male
• Favorite food: Opera’s omelet
• Likes: Playing with school friends
• Dislikes: Wastefulness
• Used to have many strange part-time jobs in the human world.
• Unable to say "no" to the words "please," "help," or "I need you."
• His given family name “Suzuki” may be fake—a joke by the author.
• Has become famous across the demon world for his mysterious powers and eating capacity.
• In Babyls, he started at rank "Aleph (1)" and quickly climbed to "He (5)".

• "I want to pick up everything! I won’t give up on anything!"
• "I'll live in the demon world."

Arrival in the Demon World

Iruma is sold by his parents and adopted by Sullivan, who wants a grandson.

Sullivan enrolls Iruma in Babyls, the Demon School.

Becoming Known at Babyls

At the entrance ceremony, Iruma is forced onstage and accidentally casts a forbidden spell, causing a big stir.

He defeats Alice Asmodeus in a duel by accident and becomes famous.

Hiding His Identity

Iruma’s main goal is to hide that he is human because demons think humans are rare and legendary—and might eat him if they knew.

He tries to lay low, but his actions always get attention and raise his reputation even more.

Gaining Friends and Confidence

Iruma becomes close with Alice Asmodeus and Clara Valac, forming a strong trio that others call "Team Iruma."

He gradually opens up to classmates, wins over rivals, and grows more confident.

Climbing the Ranks

At first ranked Aleph (1) because of strange test circumstances, Iruma later aims to level up after being inspired by Ameri Azazel.

With every rank test, Iruma surprises everyone by using clever tricks and his survival skills.

Training and Harvest Festival

For the Harvest Festival, he trains under Bachiko Barbatos and learns magic archery.

He teams up with Lied Shax, uses his survival skills, and after facing tough enemies, helps his classmates bloom the Legendary Leaf.

This leads Iruma and Lied to become Young Kings.

Music Festival and Sports

Iruma learns piano from Kalego and wins the Music Festival with Purson Soi and friends.

He helps Keroli Crocell in the Akudol Athletic Festival, using his archery skills, and turns into "Evil Iruma" at the final event to win.

Next Demon King Candidate

With the Three Greats aiming to find the next Demon King, Iruma is recommended as a candidate.

He meets other contenders and the Thirteen Crowns, answering what kind of demon world he would create.

Second Year and More Challenges

In his second year, Iruma renews his familiar contract with Kalego.

He faces new problems, and in the "Heartbreaker" test, is encouraged by Shiida and teams up with his juniors.

Battle at the Great Noble Gathering

Iruma wants to see important demon events and joins the Great Noble Assembly, where he’s eyed by Narnia disguised as Fenrir.

Though misunderstood, Iruma declares he wants a kind demon world where demons respect and help each other.

Facing Threats and Growth

Iruma supports friends in dangerous moments, like stopping Behemolt’s attack.

He also stands up for Bachiko and bonds with the Barbatos family, stopping a big war.

Club Projects and Special Exam

He leads his club to build a Haunted House for the club festival.

After winning a tricky prize, Iruma is nominated for a special promotion test "Scala," where he builds a kingdom for the Many-Eared tribe and becomes their king with help from Alice and Clara.

Other Personalities

"Bad Iruma" or "Evil Iruma" shows up when Alikred’s magic changes his personality.

"Evil Iruma" is bold and tough but still can’t say no to requests.

"Dress-up Iruma" or "Irumi" appears when Iruma dons a girl’s disguise for a school event, becoming a mysterious idol.

Secrets and Decisions

Iruma’s biggest secret is that he is human.

His deepest fear changes from being killed to being rejected by his friends if they learn the truth.

After being attacked with illusion magic, he realizes his true home is in the demon world.

He decides to one day tell his friends his true identity.

Connection to Derkila

There are hints that Iruma is connected to the mysterious former Demon King, Derkila.

He even uses Derkila’s emblem during a test, and many characters see similarities between them.

Iruma is so charming that he accidentally gathers a "harem" of admirers, both boys and girls.

He is called both the "Devil-Charmer Iruma" and "Chairman Killer," as all top students seem to fall into his circle.

Even teachers gossip that he might have as many as ten girlfriends (though this is just rumors).

He often wows others by eating huge amounts of food.

Iruma also appears as the main character in a spin-off "If Episode of Mafia," set in a mafia world.

His name "Iruma" means "human," but his last name "Suzuki" is probably a fake, as hinted by the author.

Iruma’s actor in the anime is Ayumu Murase, who also voices other well-known characters.

He once appeared as a guest in another comedy series "The Vampire Dies in No Time."

His score in that series’ character poll was hilariously huge—over 1 nonillion!