coromoor:

linkspooky:

lilacflamesss:

ah no, they don’t have 90%! their kagune traces match about 64%, which is much higher than usual siblings. this is likely because ayato ate touka’s kagune/ kakuhou back in the 11th ward, but the ccg doesn’t know about this after all.

basically what this scene was saying was that black rabbit and rabbit can’t be twins because it’s lower than 90% but the ccg doesn’t think they’re siblings as well because it should be 50% in that case. 

so the conclusion the ccg came to was that black rabbit and the original rabbit was the same ghoul and the kagune traces varied because rabbit likely cannibalized. the point of this scene was likely to tell us how the rabbit investigations were wrapped up since back in tg, there was that question about whether black rabbit was the same rabbit amon and akira were investigating. to the ccg, they probably thought it’s the same ghoul and so, ayato successfully took over touka’s alias and she wasn’t pursued anymore. 

if you want to stretch it a little further, this also explains why the ccg never connected rabbit to arata through the kagune traces like they did with kanae and the roswald family. arata’s cannibalising meant that his kagune weren’t a close match to rabbit as the usual parent-child case. it’s the same with yomo when he was raven since he went around cannibalising as well. 

though i also saw this scene as a foreshadow that ayato was going to eventually get a kakuja and given current events, that does seem very likely. 

This is an excellent post but I think you missed out on one point. There’s actually an on screen reason why Touka and Ayato would have a closer than average siblings Kakuhou, but not so close that they resembled twins. 

Remember Ayato’s cannibalizing made him more similiar to Touka’s kagune, it did not make his kagune different, such as in the case of Arata which is a pretty proper deduction as to why they never connected the rabbit case to Arata. (Kanae and the Tsukiyamas as a whole are incapable of forming Kakuja due to genetic defect, so if your theory were to hold true that could also explain why despite some cannibalism that the Tsukiyamas are known to do, Kanae was still detected.)

We see Ayato commit cannibalism onscreen however, but the person he cannibalized directly was Touka. 

Considering she can’t even make a kagune after this, it’s fair to assume that Ayato did what Kaneki did and went all the way down to the Kakuhou and devoured it, but stopped short there. 

They even both remark on the poor taste afterwards, paralleling one another.

My point, immediately after this Kaneki says this about Ayato’s every single action with Touka before this.

It’s possible then that the cannibalism too was part of Ayato’s plans. To make his kagune more indistinguishable from hers so when he took the identity of Rabbit he’d be able to more effectively cover for her, and the CCG would not be able to deduce so easily that there were in fact two rabbits. 

Ayato’s actually pretty clever on his own when he wants to be. He organized the second cochlea breach mostly on his own with the help of Banjou. He already knew about the existence of the CCG’s rating system, and apparently figured out that Rabbit was Touka all on his own before this point and that the CCG was specifically hunting rabbit. So it’s pretty feasible that he could put this together, especially since he seemed to know about cannibalism and specifically on his own decided to target the Kakuhou and the kagune the same way Kaneki did with Yamori. 

Kagune similarities though are not calculated by genetic testing from a mutated kagune like what happens with cannibalism, but by the markings they leave behind. Ayato simply making a conscious effort to copy Touka’s kagune like he did when he took over Rabbit could be a reason why they have a higher than average sibling similarity since most siblings wouldn’t be trying to copy each other.

Becoming a kakuja takes an enormous amount of cannibalism, so I’m just wondering whether eating one kagune would make enough difference to Ayato’s kagune to bump it up from an average of 50% sibling match to 64%.

Symbolically, Ayato eating her kagune may have been a sort of “passing of the torch” of the Rabbit alias, similar to Kaneki thinking he was taking Yamori’s strength by eating him. But I think he ate her kagune for the same reason he struck her in Anteiku when she went to charge at Jason; to take her out of the fight. If she doesn’t have a kagune, she can’t fight and has to retreat.

I think the point of that scene was to show that thee CCG had figured there was only one rabbit even though the kagune markings didn’t match 100% because they wrongly deduced rabbit had been cannibalising.