How Japan’s LINE Sticker Market Differs from South Korea’s
- In Japan, stickers speak for the tone
- Japan’s LINE sticker market excels at everyday phrases
- In South Korea, KakaoTalk characters have become the face of emotion
- The same character plays a different role in each market
- Common pitfalls when adding characters to WordPress yourself
- Using DecoBlocks to give characters distinct roles
- WordPress should combine the strengths of both markets
- Frequently Asked Questions
- WordPress Plugins
At a small café in Tokyo, someone sends a message. It is only two lines long.
“You worked hard today, too.” The reply, however, is not a sentence but a single rabbit character throwing both paws into the air.
In a similar scene in Seoul, a different kind of character appears—one shedding tears or sprawled face-down on the floor. They are stickers on the same kind of messaging platform, yet the ways they are loved in Japan and South Korea are quite different.
In Japan, stickers speak for the tone
In Japan, LINE is more than an app for exchanging messages. It is an everyday tool people regularly use to stay in touch with friends, family, classmates and colleagues. As a result, stickers are not merely decorative. They help shape the tone of a conversation.
Take the phrase “Understood.” On its own, it can sound a little stiff. Add a character nodding its head, and the same message comes across much more warmly.
A 2025 survey of Japanese high school students by LINE Yahoo showed the same pattern. About 60 percent said they used stickers and emojis frequently, while roughly 90 percent used them at least occasionally.
The main reason was to soften the mood when a text-only message might seem too formal or blunt. Many respondents also said they deliberately avoided stickers when discussing something serious.
What may be surprising is that frequent sticker users do not send them indiscriminately. Japanese users choose characters with the relationship, the weight of the conversation and even whether it is an appropriate moment to bring the exchange to a close in mind.
Japan’s LINE sticker market excels at everyday phrases
LINE launched its service in 2011 and introduced its sticker feature just a few months later. Since then, stickers have become a kind of visual language in Japan—one that lets users convey emotions and reactions quickly.
LINE’s recently published overview of usage trends in 2025 points to several common features among stickers that perform well in Japan. They are not simply cute characters; they capture everyday situations such as greetings, thanks, embarrassment, happiness and apologies.
Large, instantly legible lettering also matters. Few people are going to stop and study a sticker in a chat window. To be useful in a real conversation, its meaning needs to be clear at a glance.
Light teasing and awkward reactions are also highly popular in Japan. A character can express subtle feelings that are difficult to spell out at length, such as “Really?”, “I see” or “It can’t be helped.”
Another characteristic is the speed with which internet trends find their way into stickers. Facial expressions and turns of phrase that become popular on X, TikTok or television may soon appear as sticker concepts.
That is why character sets designed for a range of situations tend to outperform a single large character in the Japanese market. The deciding factor is not cuteness alone, but whether users can send the character immediately in a particular moment.
In South Korea, KakaoTalk characters have become the face of emotion
To understand sticker culture in South Korea, it is more useful to start with KakaoTalk than LINE. KakaoTalk emojis are far more familiar in everyday Korean conversation.
According to Kakao’s 2024 social responsibility report, KakaoTalk emojis had been sent more than 280 billion times cumulatively. The number of cumulative subscribers to the service that allows unlimited emoji use stood at 13 million.
Those figures suggest that emojis are not products people buy only for special occasions. They are sent on the way to work, after a meeting and even when replying feels like too much effort. Emojis are also often used like small gifts.
Korean users tend to project their own mood onto a character quickly. The character needs to convey at a glance that it is excited, sulking, exhausted or simply unwilling to do anything.
Popular Korean characters often speak for the user’s current state rather than explain the content of the conversation. A single character condenses the sentence “This is how I feel right now.”
Of course, Korean users also take etiquette and context into account. They may avoid overly playful emojis with a boss, while using exaggerated expressions and trending catchphrases freely with friends.
But while LINE stickers in Japan are often used to fine-tune the temperature of a relationship, KakaoTalk emojis in South Korea are more about showing one’s immediate feelings quickly and emphatically.
The same character plays a different role in each market
The difference between Japan and South Korea is clearer in how characters are used than in what they look like. In Japan, a character helps fill the gaps in a conversation. In South Korea, it gives the conversation an emotional expression.
Suppose a friend is late for an appointment. In Japan, you might send a character bowing apologetically to create a reassuring “It’s OK” atmosphere. In South Korea, you might send an exaggeratedly angry character to make a playful complaint.
The distinction also affects writing and character design. Stickers for Japan benefit from a broad selection of everyday phrases and polite reactions. Characters for South Korea need to communicate their emotions instantly through facial expressions and gestures alone.
A character built on cuteness alone is unlikely to remain useful for long in either market. More important than a pretty illustration is whether users have a reason to reach for it several times a day.
LINE’s official guidance in Japan likewise identifies everyday usefulness, clear emotional expression and easily recognizable characters as common features of popular stickers. In the end, the fundamentals of a good sticker are similar across countries, but the direction in which emotion is conveyed differs.
Common pitfalls when adding characters to WordPress yourself
Applying this culture to a WordPress site creates more challenges than it may seem. Adding a character image in the middle of an article sounds simple, but in practice you also need to consider image dimensions and file formats, mobile screens and alternative text.
The most common problem is oversized images. Uploading an animated sticker exactly as it appears in a messaging app can slow down a page. Visitors may close the article before the character even appears.
The second problem is that characters can interrupt the flow of the article. Adding a small image to every paragraph in an attempt to imitate Japanese-style reactions may make the text feel more playful. But in an information-heavy article, readers can easily lose track of what they are supposed to read.
The third issue concerns visitors who use screen readers. Without a description, the meaning the character was meant to convey disappears entirely. A short, precise alternative text such as “smiling character” is essential.
Copyright is another issue that cannot be overlooked. It is easy to assume that a sticker purchased in a messaging app can be reposted as blog decoration, but personal-use rights and permission to publish on a website may be different.
When handled manually, these tasks have to be repeated for every article.
- Reduce the file size and check how it displays at different screen widths
- Decide whether an animated image is really necessary
- Describe the character’s meaning in alternative text
- Check usage rights and attribution
- Read through the article again on a mobile device
Skip these steps and the site may look fun for a moment, but it will become slow, difficult to read and harder to fix later. Characters should not be used as abundant decoration; they should work like signposts that guide the reader’s emotions.
Using DecoBlocks to give characters distinct roles
Once you have decided where and how to place characters in a WordPress article, DecoBlocks lets you insert installed character stickers through the block inserter or the classic editor. It is designed for situations where you want to add visual expression to otherwise text-heavy content, including speech bubbles and character stickers that convey emotion.
For a reaction that looks like dialogue, you can use Speech Bubble (Left). Section Box (Solid) is useful for grouping related explanations, while Highlight (Yellow) can draw attention to part of an important sentence. In longer articles, Auto Table of Contents creates a table of contents after publication based on the H2 and H3 headings.
Placing characters in the introduction or at emotional turning points, while organizing information with boxes and a table of contents, helps keep decoration and content serving separate roles. Heading & Font Size can also be used to set heading levels and text sizes for each text block, making it easier to ensure that characters support rather than replace the key information.
WordPress should combine the strengths of both markets
When using characters in WordPress, there is no need to copy either Japan or South Korea wholesale. You can soften the mood of an article as Japanese users do, while also capturing the reader’s current emotion quickly, as Korean users often do.
In a travel article, for example, you might place a character with an expectant expression just once, after the opening paragraph. After explaining a complicated setup, you could add a nodding character to give readers a brief pause.
The key principle is that a character should not replace the sentence. Write the essential information clearly, and let the character support only the tone and emotional direction.
Before using one, it is worth checking three things.
- Would the meaning of the article still come through without this image?
- Does it obscure the text on a phone screen?
- Have you prepared the character’s usage rights and alternative text?
As in Japan’s LINE creator marketplace, opportunities for anyone to produce character content continue to expand. But a successful character is not completed by the drawing alone. To remain popular, it must reflect an understanding of when, to whom and with what feeling people will send it.
That is also why characters have become so popular on Korean blogs, Tistory and Naver Blog. Readers want to experience not only the information, but also the writer’s tone and mood.
Ultimately, the difference between the Japanese and South Korean markets is not about which country has cuter characters. Japan uses them to adjust the distance between people and the tone of a message, while South Korea uses them to share emotions and reactions quickly.
Remembering this distinction also makes it easier to choose characters for WordPress. Decide first whether you want to quietly soften the mood or draw out a strong emotional response from the reader, then choose the image.
Frequently Asked Questions
Q. What is the biggest difference between LINE stickers in Japan and KakaoTalk emojis in South Korea?
A. In Japan, they are often used to adjust the tone and manner of a conversation through greetings, thanks and agreement. In South Korea, they are especially useful for quickly showing an immediate feeling, such as exhaustion, excitement or embarrassment.
Q. What should Korean creators keep in mind when making LINE stickers for Japan?
A. Rather than focusing only on big emotions, prepare a broad range of greetings and reactions that people can use in everyday situations. If the lettering is too small or the meaning is ambiguous, users are less likely to select the sticker quickly in a chat window.
Q. How many character images should I add to a WordPress article?
A. Their role matters more than a set number. Instead of adding too many to a single screen, use them only where they serve a purpose, such as the introduction, a change in mood or an important call to action.
Q. Can I upload stickers purchased in a messaging app to WordPress?
A. Purchasing a sticker does not necessarily grant permission to publish it on a website. Check the copyright terms first to confirm whether commercial use and web publication are allowed.
Q. Can tools make this easier? Which tools should I use?
A. Using an image-compression tool, an accessibility checker for alternative text and a mobile preview feature can help reduce mistakes. However, tools cannot decide where to place a character or whether you have the right to use it.
Q. What should I do if my site targets both Japanese and Korean readers?
A. Even if you use the same character, prepare different wording and expressions for each audience. Offering gentle reactions for Japanese readers and immediate emotional responses for Korean readers can make the content easier to understand.
Q. How can I add characters and speech bubbles to a WordPress article?
A. In DecoBlocks, you can add character stickers installed through Insert Character Sticker to an article using the block inserter or the classic editor.
For dialogue-style expressions, you can use Speech Bubble (Left), while Section Box (Solid) works for grouping related content. For longer articles, Auto Table of Contents creates a table of contents after publication based on the H2 and H3 headings.
