Learn Korean Vocabulary Through the Fictional Worlds You Already Love

The best practice is often the practice that doesn’t feel like practice at all.

I was studying late one night and feeling slightly lost. Not catastrophically lost. I had just gone about 48 hours without being consistent, which felt much more dramatic at the time than it sounds written down. I had spent long enough away from Korean to feel like I had somehow fallen off the path entirely.

Then, for no particularly academic reason, I searched for the elements from LEGO Ninjago in Korean. I’ve always been into looking at fictional world elements even in languages I’m fluent in.

That search took me to Namu Wiki. Namu tried to force the English version of the site on me, but removing the .en from the URL did the job and brought me back to the Korean page. Suddenly, from the table of contents, I was looking at Korean vocabulary connected to something I already cared about, instead of staring at another list of words chosen by a textbook.

I asked an AI to turn the list into a quiz. I memorized the words. It didn’t feel like studying a vocabulary list, even though it was literally a vocabulary list.

That distinction matters. If you still have to sound out Korean letter by letter, start with this guide to learning Hangul before building a vocabulary rabbit hole. The faster you can read the words, the more satisfying the quiz becomes.

A vocabulary list became a knowledge network

If I had studied these as isolated flashcards, the first few might have looked like this:

• 불꽃 = flame
• 풀 = grass
• 땅 = earth
• 얼음 = ice

Those are perfectly good words. They just have more traction when they belong to a world you already know. The Ninjago elements were not random nouns anymore. They were part of a system I had encountered before, with characters and powers and associations attached to them.

That gave each word somewhere to land.

I started adding other categories: Minecraft enchantments, elements from Demon Slayer, and elements from Dragon City. And other fictional worlds as well, but you get the point. Words from some categories overlapped, which was fine. More overlap meant more practice. 전기 (electricity) appeared in both Pokémon and Dragon City, so the second encounter reinforced the first one instead of feeling like a new card from nowhere.

There were unexpected bonuses too. Learning 자기 as magnetism became easier because I could connect it to a word of the same family (전기). And when I learned 행운 as the word used for luck or for the Fortune enchantment in a Minecraft context, it did not just give me one isolated translation. It helped me notice the 행 in 행복, and recognize that this Hanja-rooted piece points toward fortune or happiness in both words. For more examples of this pattern, see 10 Hanja Roots That Unlock 50+ Korean Words.

The vocabulary started behaving less like a pile of cards and more like a map. I could forget some words and still keep the paths between the ones that stayed.

Don’t memorize the entire universe

This method has one important limit: fictional worlds contain a lot of vocabulary that is specific to that world and not especially useful outside it.

You probably don’t need every invented creature, obscure artifact, faction name, or technical term from a fantasy setting. Ask for the words that are common, transferable, or relevant to the category instead. The goal is not to become fluent in the fictional universe in Korean. The fictional universe is the hook that makes useful Korean words worth returning to.

Some words will disappear. That’s expected. Other words will stay because they matter to you, because you have encountered them in more than one category, or because they connected to a word you already knew. Those are the words that turn a study session into a continuing knowledge network.

Build your own rabbit hole

You can make this as specific as you want. The starting point could be:

• a game you have played for years;
• a fantasy or science-fiction series;
• a superhero universe;
• a cooking show with recurring ingredients and techniques;
• a sport, hobby, or craft you already understand;
• a group of fictional characters you can identify instantly.

The category itself is less important than the fact that you already care about it. Start with concepts, not with a giant vocabulary dump.

1. Pick something you already care about.
2. Identify a few relevant concepts. Elements, abilities, materials, emotions, places, actions, or objects are all good starting points.
3. Ask AI for the Korean vocabulary associated with those concepts.
4. Filter the results. Keep words that are common, useful, or genuinely relevant. Remove lore-specific clutter.
5. Turn the survivors into quizzes or flashcards.
6. Revisit the categories later. Let repeated encounters do some of the memorizing.
7. Accept that some words will disappear. Keep the ones that become meaningful to you.

The overlap is not a flaw in the system. If a word appears in Pokémon, Dragon City, and a Korean news article, that is three chances for it to become familiar.

Prompt: make Anki flashcards

Most AI tools should be capable of making a basic set of flashcards. You can ask for a CSV or tab-separated file and import it into Anki. This prompt keeps the output simple enough to paste directly into Anki’s import workflow:

I'm going to give you a list of vocabulary words, terms, or facts. Turn each one into an Anki flashcard.

For each item, output:

Front: the word or a question testing it
Back: the definition, translation, or answer, plus a short example sentence using it

Formatting rules:

- Output one card per line.
- Put the front and back on the same line, separated by a tab character.
- Do not number the cards or add extra commentary.
- Keep the back concise: definition in one sentence, example in a second sentence.
- Use natural Korean in the example sentence and provide an English translation if the answer is not obvious.
- If a term is highly specific to the fictional universe, label it as "lore-specific" instead of pretending it is common everyday Korean.

Here's my list:
[paste your list here]

Before importing a large set, check a sample of the cards. AI is useful for formatting and generating practice, but it can still choose an unnatural translation, miss a second meaning, or treat a fantasy term as ordinary vocabulary. In my case, I chose to make an html file instead (containing CSS and JavaScript too) and provided the list with translations and necessary information already to the AI, so that risk wasn’t there.

Prompt: build a quiz file

If flashcards feel too passive, ask AI to make a small HTML quiz you can open on your computer. A single file is enough: no framework, no server, and no complicated setup. You can give it one category first, then ask it to add more categories from later vocabulary lists.

Build a single-file HTML/CSS/JS quiz app with no frameworks.

Structure and data:
- Use a JavaScript array of sections.
- Each section has a name, a short description, and a list of question items.
- Each item has a prompt, a correct answer, optional accepted alternate answers, and optional multiple-choice distractors.
- Keep the data generic so I can replace it with my own categories and vocabulary later.

Quiz flow:
- Show a section-picker screen first, with one clickable card per section.
- Show one question at a time.
- Display the section name, question number / total, running score, and current mastery level.
- Include a text input, a Submit button, and Enter-to-submit.
- Add a Hint button that reveals multiple-choice options. A correct answer using a hint earns partial credit.
- Add a Skip button that reveals the answer and counts as a small miss.
- After answering, show a distinct correct, wrong, partial, or skipped state with the correct answer and accepted alternates.
- Add a Next button that stays disabled until the question is answered.
- Include optional Mark as known and Reset buttons for each question.

Mastery tracking:
- Give every item a numeric mastery level from 0 to 5.
- Increase mastery after correct answers and decrease it after wrong or skipped answers.
- Use smaller gains for hint-assisted answers.
- Persist mastery in localStorage so progress survives a reload.
- Show a colored badge with labels such as New, Learning, and Mastered.

Results:
- After the last question, show score, percentage, and a message that varies by performance tier.
- Show mastered, learning, and weak item counts as a segmented bar with a legend.
- Add Retry Section and Choose Section buttons.

Extras and design:
- Add a speaker button using the Web Speech API.
- Use a dark, centered, single-column responsive layout with cards and rounded corners.
- Keep all CSS inline in the same HTML file.
- Make the interface usable on both desktop and mobile.

Once the first quiz works, you do not need to build every category manually. Give the AI another vocabulary list and ask it to add a new section using the same data structure. That lets the quiz grow along with your interests.

The point is the return trip

The Ninjago search helped because I already cared about Ninjago’s elements. The quiz gave me a reason to encounter them again. Later, another category brought back 전기. Another word connected 행운 to 행복. The useful thing was not that I had perfectly memorized every term on the first night. The useful thing was that the words had become part of a system I could keep revisiting.

Your rabbit hole might begin with fictional elements, Minecraft enchantments, character abilities, or something completely different. The subject is just the delivery system. Choose concepts that already have a place in your mind, ask for Korean vocabulary that is actually useful, and let the repetition hide inside your curiosity.

The best practice is the practice you keep coming back to because it still feels like something you wanted to do.