file 703 spoiler

[Tenken]

Scar-faced Akai's and Okiya's identities will be revealed at the end of this case, I hope

My guess:  
Scar-faced Akai = Bourbon
Okiya = AKai
Since this is a guess, I have no evidence (or maybe no time to type out) sorry

I'm looking forward to Chianti drinking Okiya's "coffee" ;D hahah

[Sere]

May anybody tell me, where it was said, that Bourbon is new to the organization? I can't remember about it. And just because he was newly introduced, it doesn't mean he's new. So I'm a bit confused.

[Nanatsu no Ko]

May anybody tell me, where it was said, that Bourbon is new to the organization? I can't remember about it. And just because he was newly introduced, it doesn't mean he's new. So I'm a bit confused.

File 622 page 4

Spoiler:

Does anyone know what the original Japanese meant by new? I wonder if it is supposed to have a concrete meaning or be ambiguous.

[GinRei]

Based on the newest chapter's revelation of how much Bourbon hates Akai, I'm thinking "new" merely meant that he was on standby this whole time, and was just deployed.

[Chekhov MacGuffin]

May anybody tell me, where it was said, that Bourbon is new to the organization? I can't remember about it. And just because he was newly introduced, it doesn't mean he's new. So I'm a bit confused.

File 622 page 4

Spoiler:

Does anyone know what the original Japanese meant by new? I wonder if it is supposed to have a concrete meaning or be ambiguous.

Looking at a raw I believe the character used is 新. There are furigana next to it but they are too small for me to be able to guess what they are.

Ginrei's interpretation is reasonable. Another interpretation is that he only recently moved high enough in the ranks to receive an alcoholic codename.

Later edit: I prefer a combination of Ginrei's and my explanation. It would be weird to give a new agent a lot of freedom so I bet he has been codenamed and on standby for a while, but perhaps during at least some of the years while Akai was trying to move up the chain of command he was lower ranked. If he operated alone back then, it would make it harder for Akai to something to make Bourbon really despise him. If Bourbon were lower ranked back then, it seems he would be less likely to work alone when being ordered around.
One possible reason for Bourbon's hate is that Akai could have killed a sibling/spouse/parent/friend/important person to Bourbon under orders from above. This explanation has the benefit of precedent. Chianti and Korn hate Vermouth for using and getting Calvados killed. Shiho hates Gin for killing Akemi. Perhaps there is a similar situation?
I wonder why Gin doesn't like Bourbon much? (By "doesn't like" I mean Gin seems to prefer not communicating with Bourbon. I don't mean Gin hates him.) The obvious answer is Gin thinks Bourbon is like Vermouth, but I wonder if there is another reason like Bourbon has a bad personality? (It's hard to imagine a personality worse then cold psychopathic assassin...)
For those who don't think Vermouth is scar Akai or Okiya (which includes me) I wonder where she has been? I also wonder if Bourbon works with Vermouth more often. I believe scar Akai is Bourbon, not Vermouth, so it makes sense to me that Bourbon asked Vermouth with help doing the scar Akai disguise - unless Bourbon knows the art of disguise himself...

[Sere]

May anybody tell me, where it was said, that Bourbon is new to the organization? I can't remember about it. And just because he was newly introduced, it doesn't mean he's new. So I'm a bit confused.

File 622 page 4

Spoiler:

Does anyone know what the original Japanese meant by new? I wonder if it is supposed to have a concrete meaning or be ambiguous.

Looking at a raw I believe the character used is æ–°. There are furigana next to it but they are too small for me to be able to guess what they are.

Ginrei's interpretation is reasonable. Another interpretation is that he only recently moved high enough in the ranks to receive an alcoholic codename.

Well, the Kanji is the one for "new". I didn't remember that page, so thanks Nanatsu.
But I stay with GinReis explanation.

[FanOfShinichi]

Based on the newest chapter's revelation of how much Bourbon hates Akai, I'm thinking "new" merely meant that he was on standby this whole time, and was just deployed.

I agree. I think that he might be a low-ranked member for a long time before he received the codename "Bourbon". That explains why he has such kind of freedom like Vermouth has.

Out of the topic: I just wonder why Bourbon hates Akai so much, even more tham Gin. It's not just becuz Akai betrayed the BO. I think the reason might has something to do with Akemi or Sherry  ;D . I personally guess that he was in love with Akemi, who's in love with Akai. But Akemi was considered as a traitor becuz of Akai, then died, that's why Bourbon hates him that much...

[caribou]

Based on the newest chapter's revelation of how much Bourbon hates Akai, I'm thinking "new" merely meant that he was on standby this whole time, and was just deployed.

I agree. I think that he might be a low-ranked member for a long time before he received the codename "Bourbon". That explains why he has such kind of freedom like Vermouth has.

Out of the topic: I just wonder why Bourbon hates Akai so much, even more tham Gin. It's not just becuz Akai betrayed the BO. I think the reason might has something to do with Akemi or Sherry  ;D . I personally guess that he was in love with Akemi, who's in love with Akai. But Akemi was considered as a traitor becuz of Akai, then died, that's why Bourbon hates him that much...

Hm yeah I was thinking something along that line too. So Bourbon needn't have known or worked with Akai directly but he could have just known of this 'Akai Shuuichi' the traitor who got Akemi into trouble with the Org.

and it sounds to me Gin doesn't like Bourbon because Bourbon seems to be an arrogant type... maybe because of his skills and all. He seems to think that he's the only one who can kill Akai, and Gin thinks he's laughing at them somewhere, so I think there's just some resentment there for that sheer arrogance.