Tower of God: Regulars, Irregulars & Rankers Explained

Spoiler level: Low. This guide covers the Tower’s basic terminology, its selection system, and information introduced early in the story. It mentions that Bam comes from outside the Tower but avoids major character revelations and later plot developments.

A Regular sounds like an ordinary person. An Irregular sounds like someone who doesn’t follow the rules. And a Ranker sounds like someone who must be stronger than everyone else.

Reasonable guesses. But in Tower of God, those English words can be misleading.

The three labels aren’t simply different levels on a power chart. They describe different things about how someone enters the Tower’s climbing system and what they’ve accomplished within it.

Once you separate those ideas, the early tests, character introductions, and conversations about the Tower’s rules become much easier to follow.

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The Short Answer: What Do These Terms Mean?

Here’s the basic distinction.

How Regulars, Irregulars, and Rankers differ

Term	What it describes	Basic meaning
Regular	Selection or climbing stage	Usually someone selected through the Tower’s established system to climb and take tests; the word can also describe someone still climbing
Irregular	Entry from outside	Someone who entered from outside rather than through the usual selection process
Ranker	Achievement and status	Someone who completed the recognized climb and attained Ranker status

These aren’t three consecutive power levels. Irregular describes how someone entered; Ranker describes a status they attained. An Irregular can also be a Ranker, because the labels answer different questions.

Regular also has a contextual use for the climbing stage. The official Urek Mazino introduction uses it while looking back at his climb. That wording doesn’t change how he entered the Tower; the Urek example below explains why selection and current climbing status need to be read separately.

And the Korean terminology makes that distinction easier to see.

Regulars: Why “Regular” Doesn’t Mean Ordinary

The Korean word for Regular is 선별인원 (seonbyeol inwon).

A helpful literal translation is selected person or selected individual.

That sounds rather different from the English word regular, doesn’t it?

In everyday English, someone described as regular might seem unexceptional. But being a Regular in Tower of God doesn’t mean being an average resident.

The Tower contains people who simply live there without participating in the climb.

When the term refers to selection, Regulars are people brought into its organized testing system. Headon, the caretaker encountered at the beginning of the story, selects individuals from within the Tower for this purpose.

They can then attempt the tests associated with climbing through the Inner Tower.

Being selected is a beginning, not a guarantee of success.

A Regular still needs to navigate tests, competitors, teammates, and the Tower’s rules. Selection gives someone a place in that system; it doesn’t mean they’ve already completed the journey.

This distinction is worth keeping in mind when characters are introduced as Regulars.

Their status tells you they’re participating in the climb. It doesn’t automatically tell you how capable they are compared with every other participant.

Irregulars: The Korean Term Is About Selection, Not Personality

The Korean term for Irregular is 비선별인원 (biseonbyeol inwon).

The prefix 비- indicates a negative, so the term can be understood as non-selected person in contrast with 선별인원.

That doesn’t mean an Irregular is simply a Regular who failed an exam.

And it doesn’t mean someone earned the label by behaving badly.

An Irregular comes from outside the Tower and enters without going through Headon’s usual process for selecting people from within it.

The difference is about entry, not personality.

Bam is an important example in the opening story. Unlike the inhabitants selected from inside the Tower, he comes from outside it.

His arrival raises questions because the Tower has an established system for deciding who gets to climb.

Someone arriving outside that ordinary process doesn’t fit neatly into its expectations.

This also explains why the label can carry a sense of uncertainty or concern among the Tower’s inhabitants.

But Irregular isn’t another way of saying villain, and it isn’t a guarantee that every person bearing the title has the same abilities.

It’s a description of an unusual relationship with the Tower’s entry system.

Rankers: A Status Earned Through the Climb

A Ranker is different again.

The term refers to someone who has successfully completed the recognized climb and gained a formal status within the Tower’s system.

This is why Rankers are not simply another group of new test participants.

The story introduces Rankers who are already experienced enough to be involved in conducting or supervising the tests faced by newer climbers.

Lero Ro and Quant are early examples.

The contrast between people taking tests and people overseeing them helps establish that the Tower has an organized hierarchy.

A Ranker has already reached a stage that the Regulars are working toward.

That status also has significance beyond raw fighting ability.

It represents recognition within the Tower’s structure, not merely a description of someone’s strength in one particular encounter.

You’ll also hear about High Rankers, a distinguished group within the Ranker hierarchy.

For an introductory guide, you don’t need to memorize the ranking system’s finer details. The key distinction is between those still undertaking the climb and those who have attained Ranker status.

So Can an Irregular Also Be a Ranker?

This is where the terms become easier to understand once they’re separated.

Think of them as answers to different questions.

How did this person enter the Tower?

The distinction between a conventionally selected Regular and an Irregular concerns the route by which someone entered the climbing system.

What stage has this person reached?

The distinction between a climber still taking tests and someone recognized as a Ranker concerns progress and status.

That means Irregular and Ranker aren’t inherently contradictory descriptions.

The official Tower of God: Urek Mazino spin-off introduces Urek as a legendary Ranker while also looking back at his time climbing the Tower as a Regular.

The wording is a useful reminder that Regular can also be used for someone in the climbing stage of their journey, even when their circumstances are unusual.

That’s one reason a simple three-level diagram—Regular, then Irregular, then Ranker—would give the wrong impression.

The terms describe overlapping aspects of the Tower’s world, not one straightforward promotion ladder.

Why Selection Matters to the Story

The Tower’s tests are more than a collection of fantasy challenges.

They establish who is allowed to advance within a structured system.

A person may have to prove themselves, compete with others, cooperate with a team, and work within rules they didn’t create.

That gives the distinction between a selected participant and someone from outside the selection process more narrative weight.

There’s an institutional question underneath the action: who decides who belongs in the system?

For most climbers, selection and testing are part of the accepted order.

An Irregular raises a different possibility—someone whose arrival doesn’t depend on being selected through that ordinary route.

This doesn’t mean every Regular supports the Tower’s existing order or that every Irregular intends to challenge it.

Those would be assumptions about individual characters.

But the difference in how people enter helps explain why their presence may be understood differently.

It’s one of the features that makes the Tower feel like a society with rules and authority, rather than simply a building filled with increasingly difficult enemies.

What About Shinsu and Fighting Positions?

These terms often appear alongside Regulars and Rankers, but they describe different parts of the world.

Shinsu, also written as Shinsoo in some English contexts, is the substance associated with life and extraordinary abilities inside the Tower.

The story also introduces team positions such as Fisherman, Spear Bearer, Scout, Light Bearer, and Wave Controller.

Those positions describe functions within a team. The five team positions and Shinsu guide explains what each role contributes during the early tests.

They don’t determine whether someone is a Regular or an Irregular.

Likewise, knowing how a character uses Shinsu doesn’t automatically tell you their official climbing status.

This is a helpful distinction when the terminology starts to pile up.

One set of words concerns how people enter or progress through the Tower’s system. Another describes what they do during its challenges.

Three Things to Remember While Reading

You don’t need a complete encyclopedia of the Tower before starting the story.

When one of these labels appears, keep three questions in mind.

1. Is the term describing selection or achievement?

Regular and Irregular concern entry and selection. Ranker concerns an attained status.

2. Is someone taking a test or overseeing it?

The answer can help you understand their position within the Tower’s organized climbing system.

3. Does the label tell you what a character is capable of?

Not necessarily. A formal status or unusual origin isn’t a complete description of an individual’s abilities, intentions, or personality.

Those distinctions give you a useful foundation without revealing the story’s later mysteries.

The Difference That Matters Most

The three labels make much more sense once you stop treating them as a simple ranking of strong, stronger, and strongest.

In the selection sense, a Regular has been selected to climb. An Irregular entered from outside the normal selection route. A Ranker has reached a recognized status through the climb.

The Korean terms 선별인원 and 비선별인원 are particularly useful here because they draw attention to selection rather than ordinary behavior.

That small translation detail helps reveal something larger about Tower of God: its world is built not just around power, but around rules governing who gets to climb and how their place in that world is recognized.

For an overview of SIU’s original Korean webtoon, its adaptations, and more reading paths, visit the Tower of God Hub.

Official Sources and Further Reading

• WEBTOON — Tower of God — original English digital webtoon by SIU.
• Naver WEBTOON — 신의 탑 — official Korean work and original terminology.
• Crunchyroll — Tower of God Season 1 Guide — Tower structure, Regulars, Irregulars, Rankers, and Shinsu. Contains Season 1 spoilers.
• Crunchyroll — Episode 2 Recap — early explanation of Headon’s selection system and the Tower’s regions. Contains Episode 2 spoilers.
• WEBTOON — Tower of God: Urek Mazino — official spin-off description contrasting Urek’s climbing years with his Ranker status.