This time, we’re introducing Haikei… Koroshiya-san to Kekkon Shimashita—a quirky, heartwarming manga that’s perfect for beginners looking to learn natural, polite Japanese through everyday married life.
Work Information
Haikei... Koroshiya-san to Kekkon Shimashita (拝啓…殺し屋さんと結婚しました)
Author: Takasaka Donten
Publisher: KADOKAWA
Amount of text: moderate
Challenge level: ★★
Latest volume : Vol.7（Sep.2024 / Ongoing）
Story overview
A stoic and calm wife with an unexpected profession… She’s an assassin! But no matter how hard she tries, she can’t completely hide her emotions in front of her husband, making life together thrilling in many ways. He just wants to be loved to death—literally. A romantic comedy about a married assassin and her love-filled antics!
The Appeal of This Manga
This heartwarming yet thrilling manga follows the married life of a unique couple: a kind and sensible husband, and his newlywed wife—an elite assassin. She’s highly skilled and lethal in her profession, but in private life, she’s naive, pure-hearted, and completely unaware of her own stunning looks. On top of that, she’s emotionally reserved and cool-headed, often expressing herself with subtle gestures rather than words.
Their sweet and slightly chaotic married life is full of charming contradictions: tenderness meets danger, awkwardness meets passion. It’s a feel-good story that doesn’t rely on heavy drama or complicated plot twists—instead, it invites you to simply enjoy the quirky world and lovable characters as they are.
This manga is perfect for readers who enjoy light romantic comedies with a twist of absurdity and a whole lot of heart.
Why this manga is suitable for learning Japanese
This manga is not only entertaining but also highly recommended for Japanese learners for several reasons.
There are numerous examples of polite language
The husband always uses polite language when speaking to his wife, Setsuna, who is an assassin. Since the story primarily focuses on their married life (everyday life), there are plenty of examples of polite conversation from the husband, making this work highly recommended for beginners in Japanese language learning.
Plenty of examples of everyday conversation
Although the story has the unrealistic setting of a wife who is an assassin, it mainly depicts the couple’s married life (everyday life). As a result, most of the conversations are everyday dialogues. Readers will find numerous examples of natural, polite conversations that are commonly used in daily life.
Phrase Spotlight
“コンプライアンス”: How a Borrowed Word Took on a Life of Its Own in Japan今は会社もコンプライアンスとかうるさいしな
As seen in a line from the manga:
「今は会社もコンプライアンスとかうるさいしな。」
“These days, companies are really strict about compliance and all.”
This phrase reflects a common sentiment—and terminology—you’ll hear in everyday Japanese conversation today.
From “Compliance” to “コンプラ”: A Shift in Meaning
In English, compliance typically refers to following laws or regulations. But in modern Japanese, the word コンプライアンス (compliance) has taken on a broader, uniquely Japanese meaning. It’s no longer just about legality—it’s about behaving properly in society and avoiding anything that might cause trouble or controversy.
In fact, the word has become so common that people now casually shorten it to “コンプラ” in speech. This kind of abbreviation is often a sign that a foreign term has been fully absorbed into Japanese culture.
A Widespread Cultural Norm
In today’s Japan, コンプラ isn’t just a corporate buzzword—it’s a core social expectation. Whether in media, business, schools, or even personal social media, there’s a shared understanding that everyone must watch their words and actions carefully.
You’ll hear things like:
・「テレビもコンプラ厳しくなったね。」
“TV shows have become super strict about compliance these days.”
・「それ、コンプラ的にダメじゃない？」
“Isn’t that kind of a compliance problem?”
These statements often have little to do with legal issues. Instead, they’re about avoiding anything that might offend, embarrass, or bring shame, even unintentionally. This reflects a risk-averse mindset—a desire to avoid negative attention or social backlash.
What It Means for Learners
So, if you come across コンプライアンス or コンプラ in manga or real-life conversation, remember: it doesn’t simply refer to legal compliance as in English.
In Japanese, the term often carries a broader social meaning—emphasizing the importance of behaving appropriately, maintaining a clean public image, and avoiding actions that might cause offense or attract negative attention. This reflects the strong cultural value placed on social harmony and caution in Japan, especially in professional or public settings.
A Little Warning
Setsuna’s language is very haughty
Perhaps due to her character as an assassin, Setsuna’s way of speaking is blunt and overbearing. In the real world, it’s quite unusual, especially for young women, to talk like this. Unless you have a specific reason, like wanting to come across as a character from anime or manga, it’s probably best not to imitate this style of speech.
Work Information
Haikei... Koroshiya-san to Kekkon Shimashita (拝啓…殺し屋さんと結婚しました)
Author: Takasaka Donten
Publisher: KADOKAWA
Amount of text: moderate
Challenge level: ★★
Latest volume : Vol.7（Sep.2024 / Ongoing）
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This Blog’s ConceptIn this blog, we are introducing manga that are not only highly captivating but also ideal for Japanese language learners. Studying Japanese through manga is both fun and effective. Manga allows you to understand the subtleties of keigo (honorifics), teineigo (polite speech), and casual conversation in Japanese. We hope you find works that match your interests and use them to enhance your Japanese learning journey.