Why Is Bam Called Yoru in Tower of God? Korean Names & Anime Subtitles

Spoiler level: None. This guide explains character names and translation choices from the beginning of Tower of God. It doesn’t discuss later identities, major story twists, or character fates.

You’re watching Tower of God with Japanese audio and English subtitles.

Someone says “Yoru,” but the subtitle says “Bam.”

Did the translation change a character’s name? Or are these two different people?

The short answer is that Bam and Yoru refer to the same protagonist.

His Korean name is 밤 (Bam), a word meaning night. The Japanese anime uses Yoru, the Japanese word for night, while the English subtitles retain Bam, the name familiar to readers of the official WEBTOON.

Crunchyroll has explained this localization choice directly.

But the Korean spelling, the protagonist’s full name, and another character called Rachel make the naming situation a little more interesting.

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Why Does the Anime Say Yoru Instead of Bam?

The original Tower of God is a Korean webtoon called 신의 탑, created by SIU.

Its protagonist is commonly called Bam in the official English WEBTOON.

When the story was adapted into a Japanese-language anime, his name was rendered as Yoru in Japanese dialogue.

Both names point to the same meaning:

• 밤 (Bam) — Korean for night.
• 夜 (Yoru) — Japanese for night.

So the Japanese version translates the meaning of the name rather than simply reproducing its Korean sound.

The English subtitle takes a different approach. It preserves the established character name from the English WEBTOON.

This is why the Japanese dialogue and English text can seem to disagree even when they’re referring to exactly the same person.

You don’t need an explanation from a later season to resolve the difference. It’s a localization decision, not a mystery introduced by the plot.

What Does Bam Mean in Korean?

Here’s the Korean-language detail that can get lost when the name appears only in English letters.

The word 밤 has two familiar meanings:

• Night — the dark part of the day.
• Chestnut — the edible nut.

The National Institute of Korean Language’s Korean-English Learners’ Dictionary lists these as separate words. Its pronunciation notation also distinguishes their traditional vowel lengths.

They are written with the same Korean characters, and an English spelling such as Bam doesn’t show that dictionary distinction.

For Tower of God, night is the relevant meaning behind the Japanese name Yoru. That is also how Crunchyroll explains the anime’s choice.

The chestnut meaning is a genuine feature of Korean vocabulary, but it shouldn’t automatically be treated as evidence of a secret plot clue.

A word can have more than one meaning without every meaning being central to a particular story.

This is a small example of why checking the original Hangul can help. An English name may preserve how a Korean word sounds while leaving its meaning invisible.

What Does Twenty-Fifth Bam Mean?

The protagonist’s fuller name is presented in Korean as 스물다섯번째 밤.

Translated word by word, it gives the idea of Twenty-Fifth Night.

Official English material uses Twenty-Fifth Bam.

That English form combines a translated number with the established character name Bam, rather than translating the entire phrase into Twenty-Fifth Night.

You may see the full name in official character introductions, while shorter descriptions simply call him Bam.

There’s an important limit to what the wording tells us, though.

The presence of Twenty-Fifth in a name doesn’t, by itself, establish a verified birthday, age, or explanation for why that number was chosen.

Those are questions about the character’s story, not facts that can be settled by translating the Korean words alone.

For someone trying to match character listings between languages, the practical point is simpler: Twenty-Fifth Bam and Bam refer to the same protagonist.

Why Does Crunchyroll Keep Bam in the English Subtitles?

Crunchyroll published an explanation when the anime began in 2020.

According to that explanation, the production partners chose to retain Bam and Rachel in the English subtitles to keep the naming consistent with the original WEBTOON.

That decision creates a recognizable connection for English-speaking readers who already know the comic.

It also means that the subtitles don’t always reproduce the name sounds heard in the Japanese audio.

Two different translation choices are operating together:

Japanese dialogue: Use a Japanese word that conveys the meaning of Bam’s Korean name.

English subtitles: Retain the familiar English-edition character name.

Neither approach necessarily means the other is a mistake.

One prioritizes the meaning of the Korean word in Japanese dialogue. The other keeps names consistent across the WEBTOON and English-subtitled anime.

For a reader switching formats, that consistency can be useful even if the first few spoken lines sound surprising.

Why Does Rachel Sound Like Rahel?

Bam isn’t the only character whose name may sound different from its English subtitle.

In the official English WEBTOON, another central character is called Rachel.

Her Korean name is written 라헬 (Rahel).

The Japanese anime uses ラヘル (Raheru in a straightforward Japanese romanization).

But the English subtitles use Rachel.

This is a different kind of name change from Bam becoming Yoru.

With Bam, the Japanese name translates the meaning of a Korean word.

With Rachel, the forms reflect how a personal name is represented across Korean, Japanese, and English.

Crunchyroll’s explanation also connects the Korean form of Rachel’s name to the biblical name as used in Korean.

The useful distinction is that a name can be translated for its meaning or represented through another language’s pronunciation and established spelling.

Those aren’t the same operation.

If you hear a name resembling Rahel while the English subtitle says Rachel, you aren’t being introduced to a second character.

You’re hearing a different language’s form of the same name.

Bam, Baam, Yoru: Which Name Should You Use?

If you’re discussing the official English WEBTOON, Bam is the clearest choice.

If you’re talking about Japanese dialogue, Yoru is the name you’ll hear.

You may also encounter Baam in English-language discussions. It is another way people represent the Korean name in Latin letters, but Bam is the spelling used in the official English material cited here.

You don’t need to change the name you use every time you switch media.

The important thing is to understand the relationship between the versions.

A reader asking why the subtitle says Bam when the dialogue says Yoru has encountered a translation difference, not necessarily an inconsistency in the story.

And the same principle can help with Rachel’s name.

Check the source language, the translated edition, and the name convention that edition follows before assuming the character has been renamed for a new plot reason.

What This Tells Us About Korean Webtoons Becoming Anime

The names in Tower of God show one practical challenge of adapting Korean stories for international audiences.

There isn’t always a single English or Japanese form that preserves everything about a Korean name.

A translation can keep the original sound, translate a meaningful word, or retain a name already established in another licensed edition.

Different decisions can make sense in different parts of a multilingual release.

For Tower of God, this becomes visible because viewers can hear Japanese dialogue while reading English subtitles based on familiar WEBTOON names.

The Korean original adds another layer: Bam isn’t just a sequence of letters. It’s a Korean word with an everyday meaning.

Understanding that doesn’t require memorizing a whole translation glossary.

It simply makes it easier to recognize the same character when a story travels between Korean comics, Japanese animation, and English editions.

For more about the original Korean webtoon and its adaptations, visit the Tower of God Hub.

If you’re trying to continue the story after watching the anime, the Tower of God Reading Order Guide explains where the WEBTOON begins and how the adaptations fit together.

Official Sources and Further Reading

• WEBTOON — Tower of God — official English webtoon and character names.
• Naver WEBTOON — 신의 탑 — SIU’s original Korean series.
• Crunchyroll — Why Does Crunchyroll Use “Bam” in the Tower of God Subtitles? — official explanation of the localization choices for Bam and Rachel.
• National Institute of Korean Language — 밤 Dictionary Entries — Korean meanings of night and chestnut.
• Netmarble — Tower of God Character Introduction (Korean) — Korean presentation of Twenty-Fifth Bam.
• Netmarble — Twenty-Fifth Bam Character Announcement (English) — official English character naming.