Theory: New character Sera Masumi Is An FBI Agent

[ProfParanoia]

Little regard for human life? This is how police are trained to deal with such situations! Ran's the one with so little regard for human life, in the real world, she would have gotten them all killed!

OK, I may have exaggerated the "little regard for human life" thing, but, as you mentioned, her actions are similar to what a police officer would have done in that situation, further proving that she works/worked for an espionage-related organization. As I mentioned before, this organization is LIKELY the FBI, due to the reasons I mentioned in the main post.

Don't you agree?

1. Conan knew trivia about British cop terminology. Sera (who's expressed her love for Japan) would have probably studied a lot of their police tactics.

That may be true, but it is still very unusual for a high school student to know that much information to the extent where she figures out the police's tactical plans and positions in such a short amount of time (unless she went through similar situations beforehand).

1. Having a sense of rationality means you're a spy!!!

2. Damn, if only there was this net of intern that could somehow contain information for people who aren't in a police force but still learn about them and their protocol. Plus, as we know you can only learn about Japan if you're currently in Japan.

She's a mastermind! FBI is the only option!

[Jessicaz140]

Your theory is well supported
Sera seems to be suspicious in a way and may be a FBI agent though we can't be certain. I doubt she is a BLack Organization member but correct me if I am wrong. She seems to know Conan's identity or at least know some things about Conan which makes it strange.

[Shuusgirl]

With the whole "little regard for human life", they both do.  Sera wants to shrink the body count, and Ran wants it non-existent.  Besides, she trusts that Shinichi knows what he's doing.
But I agree, she acts like someone...if not trained formally then trained on the job.  I don't think she has as high a respect for life as Shinichi (as it's suggested that she allows culpriets to commit suicide), but she definately cares about the innocent.
But if she's an FBI agent, why would she say she's a detective?  I mean, obviously she wouldn't be all, "I'm FBI!" but why choose an occupation so darn close?  I think she's a detective, but possibly trained in some kind of enforcement.

[Abs.]

Public Service Announcement.

Okay, so technically and all that, "Detective Conan" should be more appropriately translated "Conan, P.I." and all instances of "detective" used in this manga/anime should be replaced with "private investigator" (except for when 'detective' is used in the sense of 'police detective').

You may now return to your regularly scheduled programming, already in progress.

[Shuusgirl]

Interesting, thanks Abs.
See, if Sera's Akai's sister, then maybe he trained her.  This would explain her views and her knowledge of the ways the police work.

[Kor]

"Sera is a Black Organization Member" - Not Likely

Some of you have mentioned that Sera could also be a member of the Black Organization. This theory is not very likely, due to the fact that Sera publicly worked with the police to solve a case (Files 768-770). If Sera was called in for questioning by the police, her identity as well as her involvement in the organization would have been exposed. This is out of character for the organization, as they prefer to act secretly and "behind the lines" to avoid exposing their existence to the world.

According to what are you saying that? It's just like saying "if she was questioned by the police, her identity as well as her involvement in the FBI would have been exposed"
In other words, you didn't really give any reason why the B.O. theory is unlikely.

BTW, I don't think she is from the B.O. or the FBI.

[Ezio]

"Sera is a Black Organization Member" - Not Likely

Some of you have mentioned that Sera could also be a member of the Black Organization. This theory is not very likely, due to the fact that Sera publicly worked with the police to solve a case (Files 768-770). If Sera was called in for questioning by the police, her identity as well as her involvement in the organization would have been exposed. This is out of character for the organization, as they prefer to act secretly and "behind the lines" to avoid exposing their existence to the world.

According to what are you saying that? It's just like saying "if she was questioned by the police, her identity as well as her involvement in the FBI would have been exposed"
In other words, you didn't really give any reason why the B.O. theory is unlikely.

BTW, I don't think she is from the B.O. or the FBI.

What I meant was that if Sera was called in for questioning by the police, her real name, residence, age, education/occupation, and most of her personal information would have been exposed. Her involvement with the BO would require her to do certain tasks, live in a certain place, and have a certain identity/cover (similar to Hondou Hidemi/Mizunashi Rena/Kir's situation). For example, if she was a BO member and was an undercover high school student, her cover would easily be exposed. If you're still not convinced, then I will add another point: a syndicate member that participates in organized crime will generally avoid any contact with police or law enforcement, similar to how Gin and Vodka acted in the very first chapter of the series. Instead, Sera went out of her way to help the police solve a murder case, clearly putting her identity at risk.

Even if her identity as an FBI agent was exposed, she can easily make an excuse for her stay in Japan such as visiting a relative or taking a vacation (similar to what Jodie and Camel did during the Clash of the Red and Black).

[skdc8595]

Wait....if Sera is an FBI agent...

Probably she is part of the witness protection program and was a victim of the organization.

Or probably just there to help in the investigation

And I don't think she is an organization member because Conan doesn't think she is a bud guy.

And if she is Akai's sister, it's accepted because of her similarities with Akai. (even though I am not that convince because of the lack of evidences)

Or probably she is both an FBI and Akai's sister.

Or probably just another character who is going to help Conan on some stuffs.

[Ezio]

Wait....if Sera is an FBI agent...

Probably she is part of the witness protection program and was a victim of the organization.

My guess is that Sera was put in the witness protection program after Akai's cover in the organization as Morobshi Dai was exposed to keep her safe from the organization (3 years before the current time line). This was the same time as when Sera and her family moved to the United States. If she was part of the witness protection program, that would explain why her last name is different from Akai's and why she would join the FBI at such a young age (similar to what happened with Jodie when she was put under the witness protection program).

[leokiko]

Maybe she refused to enter the program and went on living a normal life. But somehow discovered that her brother had been killed and now is trying to discover more things about who did it through Conan. OR if he is actually alive.

[Vonikay]

I think it would be awesome if all of the following were true:

Sera is Akai's sister
Sera is in Japan investigating his 'death'
Sera is part of the FBI
(Wait, there's more!)
Sera is actually 27, she took the apotoxin much like how we suspect Vermouth did

That would explain how she was allowed into the organisation and why she is an epic martial artist/detective.

Anyways, now for one more crack theory of mine...
Sera is Akai XDDD;;;

[randompi314159]

I wouldn't mind Sera being Akai's sister, due to all the apparent similarities, but I hope she isn't merely searching for her brother, doing a reverse-role-Eisuke arc.

[Tanaka Taro]

yea that would be pretty bad

[Kor]

Even if her identity as an FBI agent was exposed, she can easily make an excuse for her stay in Japan such as visiting a relative or taking a vacation (similar to what Jodie and Camel did during the Clash of the Red and Black).

Only that Camel and Jodie didn't actually study in a high school. Do you really think there is an excuse for an FBI agent to go to Japan and enter 11th grade?

Megure: By the way, Masumi-san, do you mind explaining us what does an FBI agent have to do in 11th grade?
Sera: .............oh crap.........

[redangelran]

I wouldn't mind Sera being Akai's sister, due to all the apparent similarities, but I hope she isn't merely searching for her brother, doing a reverse-role-Eisuke arc.

+1