<p>To expand <a href="https://anime.stackexchange.com/questions/39164/why-do-conan-and-the-detective-boys-call-ai-haibara-san#comment53241_39164">my comment</a>, it's because she's a transfer student and always act mature</p>

<p><a href="https://i.sstatic.net/IpjIG.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/IpjIG.jpg" alt="Case Closed Chapter 398 Page 3"></a></p>

<p>Ayumi tried to call her Ai-cahn several times but too afraid to do so</p>

<p><a href="https://i.sstatic.net/sZY2Y.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/sZY2Y.jpg" alt="Case Closed Chapter 398 Page 4"></a></p>

<p>But in the end, she was able to call he Ai-chan, but when the other called her that, she refused</p>

<p><a href="https://i.sstatic.net/yTeWg.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/yTeWg.jpg" alt="Case Closed Chapter 398 Page 18"></a></p>

<p>Pictures taken from Case Closed Chapter 398 and 400</p>

CC BY-SA 3.0
2017-02-28T19:11:18.627Z
Thanks for your answer. :-) So basically Ai _wants_ to be called "Haibara-san"? And do you know, where the list in the first picture comes from? Is this some kind of "friendship book" where your classmates write something about themselves?
FelixSFD
CC BY-SA 3.0
2017-03-01T00:16:49.340Z
If you're talking about the book that Ayumi hold, it's probably her phone book, she was calling her classmate.
Darjeeling
CC BY-SA 3.0
2017-03-01T00:34:52.740Z
It's probably more like she doesn't want them to call her Ai-chan
Darjeeling
CC BY-SA 3.0
2017-02-28T08:33:44.033Z
2017-02-28T08:33:44.033Z
2017-04-13T12:54:48.953Z
Darjeeling
<p>-kun and -chan is actually used for someone in the same age with you, younger, or very close to you</p>

<p>-san used for someone older or you respect that person. But -san also can use for someone who's not really close to you. </p>

<p>In those context, they even calls Ai with her (fake) family name, Haibara. Because it's sounds more polite and if we add -san it will be more more polite. Especially for someone like Haibara who's not easy to getting closer, that's why the boys (Genta and Mitsuhiko) still called her with Haibara or Haibara-san.</p>

CC BY-SA 4.0
2019-01-02T06:19:06.983Z
2019-01-02T06:19:06.983Z
Khal
<p>Since a few months, I'm watching Detective Conan in Japanese with subtitles (because only the first 308 episodes are available in German). After a few episodes, I did some research on japanese names, since "-san", "-chan", "-kun", etc. was confusing me.</p>

<p>I've noticed, that:</p>

<ul>
<li><p>The Detective Boys call Conan "Conan-<em>kun</em>", which seems to be perfectly normal, according to <a href="https://en.wikipedia.org/wiki/Japanese_honorifics#Kun" rel="nofollow noreferrer">Wikipedia</a></p></li>
<li><p>Genta and Mitsuhiko call Ayumi "Ayumi-<em>chan</em>" (according to <a href="https://en.wikipedia.org/wiki/Japanese_honorifics#Chan" rel="nofollow noreferrer">Wikipedia</a>, this is okay as well, since they are young children)</p></li>
<li><p>Hiroshi Agasa calls Ai "Ai-<em>kun</em>"</p></li>
</ul>

<p>But:</p>

<ul>
<li>The Detective Boys (including Conan) call Ai always "Haibara-<em>san</em>"</li>
</ul>

<p>Why do they treat Ai, like she was an adult? Genta, Mitsuhiko and Ayumi can't know, that Ai is actually an 18-year-old woman.</p>

CC BY-SA 3.0
2017-02-28T00:04:20.323Z
because even when her appearance is a little kid, unlike Conan who sometimes act like a kid, she acts like an adult, thus everyone call her Haibara-san. I remember one chapter tells Ayumi wants to call her Ai once but afraid to do so, at the end, she calls her Ai, but when the others also want to call her Ai, she refuses
Darjeeling
<japanese-language><detective-conan>
Why do Conan and the Detective Boys call Ai "Haibara-san"?
# Why do Conan and the Detective Boys call Ai "Haibara-san"?
Posted by: username_0 on 2017-02-27
Since a few months, I'm watching Detective Conan in Japanese with subtitles (because only the first 308 episodes are available in German). After a few episodes, I did some research on japanese names, since "-san", "-chan", "-kun", etc. was confusing me.

I've noticed, that:

* The Detective Boys call Conan "Conan-*kun*", which seems to be perfectly normal, according to [Wikipedia](https://en.wikipedia.org/wiki/Japanese_honorifics#Kun)
* Genta and Mitsuhiko call Ayumi "Ayumi-*chan*" (according to [Wikipedia](https://en.wikipedia.org/wiki/Japanese_honorifics#Chan), this is okay as well, since they are young children)
* Hiroshi Agasa calls Ai "Ai-*kun*"

But:

* The Detective Boys (including Conan) call Ai always "Haibara-*san*"

Why do they treat Ai, like she was an adult? Genta, Mitsuhiko and Ayumi can't know, that Ai is actually an 18-year-old woman.
**Tags:** japanese-language detective-conan
> **Comments:**
> **username_1**: because even when her appearance is a little kid, unlike Conan who sometimes act like a kid, she acts like an adult, thus everyone call her Haibara-san. I remember one chapter tells Ayumi wants to call her Ai once but afraid to do so, at the end, she calls her Ai, but when the others also want to call her Ai, she refuses  
---
## 2 answers
### Answer by username_1 on 2017-02-28. Score: 5 | Accepted answer
To expand [my comment](https://anime.stackexchange.com/questions/39164/why-do-conan-and-the-detective-boys-call-ai-haibara-san#comment53241_39164), it's because she's a transfer student and always act mature

[![Case Closed Chapter 398 Page 3](https://i.sstatic.net/IpjIG.jpg)](https://i.sstatic.net/IpjIG.jpg)

Ayumi tried to call her Ai-cahn several times but too afraid to do so

[![Case Closed Chapter 398 Page 4](https://i.sstatic.net/sZY2Y.jpg)](https://i.sstatic.net/sZY2Y.jpg)

But in the end, she was able to call he Ai-chan, but when the other called her that, she refused

[![Case Closed Chapter 398 Page 18](https://i.sstatic.net/yTeWg.jpg)](https://i.sstatic.net/yTeWg.jpg)

Pictures taken from Case Closed Chapter 398 and 400
> **Comments:**
> **username_0** (2017-02-28): Thanks for your answer. :-) So basically Ai _wants_ to be called "Haibara-san"? And do you know, where the list in the first picture comes from? Is this some kind of "friendship book" where your classmates write something about themselves?  
> **username_1** (2017-03-01): If you're talking about the book that Ayumi hold, it's probably her phone book, she was calling her classmate.  
> **username_1** (2017-03-01): It's probably more like she doesn't want them to call her Ai-chan  
---
### Answer by username_2 on 2019-01-02. Score: 0
-kun and -chan is actually used for someone in the same age with you, younger, or very close to you

-san used for someone older or you respect that person. But -san also can use for someone who's not really close to you.

In those context, they even calls Ai with her (fake) family name, Haibara. Because it's sounds more polite and if we add -san it will be more more polite. Especially for someone like Haibara who's not easy to getting closer, that's why the boys (Genta and Mitsuhiko) still called her with Haibara or Haibara-san.
---
