you did well today.

2) for legal reasons, do not cover their stickers with your own, i am not saying you should do this

This is my one Big Theory that has been living rent-free in my head for almost 2 years so I'm finally making a Big Post about it 🥰 I already made threads about it on twt/bsky over a year ago but I've had longer to think about it now and have more evidence!

First things first - despite the implications of recent chapters, I believe it's almost impossible for Modri to be Polaris due to various reasons, some of which I've detailed here, here, here and here if you're interested.

Now, onto the good stuff!

There are only a few things we know for certain about Polaris:

He is a butler

He is a bizarre doll

He is extremely violent and catastrophic

He is an excellent close-combat fighter (good enough to beat Agni)

He is extremely dedicated to r!Ciel and is willing to kill as many people as it takes to collect blood for him

He has lost at least one master in the past

The idea of Polaris being a bizarre doll of Undertaker's human corpse actually first came to me when I was comparing Polaris's jaw shape to everyone in the manga and UT's was the only one that matched 😂 There is a moment in ch169 that makes their emotional similarities particularly clear to me, but first I'll list some of Undertaker's traits that are relevant to this theory:

He is also extremely dedicated to the Phantomhives and will kill as many people as it takes to collect blood for r!Ciel

He is an excellent fighter (good enough to near-kill Sebastian)

He has a history of human experimentation and, judging by his scars (which he did not used to have), possible self-experimentation

He killed himself (perhaps after losing a master?)

He left the reapers around 70 years ago

He underwent a stark change in personality (- Othello)

He was a workaholic during his reaper days ( - Othello)

He has a pre-reaper past that we know absolutely nothing about (could he have been butler to the Phantomhive family?)

On these facts we see similarities in their dedication to the Phantomhives, their combat ability, their being dead - and, possibly, their personalities depending on what UT was like pre-reaper.

To state the obvious for a moment here - Undertaker must've had a reason to kill himself. And if Polaris is his own human corpse reanimated, the trauma will be very fresh in Polaris's mind compared to UT, who has had many decades to mull over it and formulate his plans in a more coherent way. This could explain why Polaris is so furious and desperate and upset in comparison - though UT does have his moments of depression that are drawn in this very quiet, desolate way. (Plus his workaholic years as a reaper.)

This brings me onto the ch169 conversation between Polaris, r!Ciel, and Undertaker. For once, UT barely smiles - in fact, he barely so much as looks at Polaris throughout the whole conversation, which is strange for him. The whole time that Polaris is crashing out and destroying the room, UT just sits there silently staring out the window. As if ignoring his feelings because they are the same feelings that he has ignored so many times within himself.

At the end of the scene, however, there is just one moment where Undertaker reacts:

He finally glances at Polaris, and the next panel focuses his reaction - he purses his lips as if these words mean something to him. Maybe it's because that IS precisely what he did - lost his master, killed himself, and then dedicated his life in reaper-form to finding a way to overcome death and making sure he could never lose his master again. And Polaris, if he is a bizarre doll of Undertaker, would of course feel the exact same way and hope to use his second life for this same purpose.

(bit of a side tangent: In ch227 we also see that Undertaker had begun his human experimentation at least a hundred years ago (judging by the 1700s setting of Modri's lifetime), where he's still wearing a reaper work uniform, so it's not unreasonable to think that he could've started by collecting and experimenting on his own human corpse. I also wonder if this is why the broken Polaris bottles are shown next to the experiments on Modri - perhaps Modri's body has some regenerative properties thanks to the exorcists' ritual, and UT was thus using Modri's body to help reanimate his own corpse.)

A cute moment - they both initially react the same way to r!Ciel starting to laugh lmao.

Anyway, clearly they are similar in some aspects, but there is the big glaring hole of If Polaris is a butler, was Undertaker a butler in his previous life???

At first this was just a huge assumption on my part that I didn't think had any explicit evidence in canon yet. However, a friend brought my attention to a couple of exchanges between UT and r!Ciel in ch151:

This, knowing the "heehee-haahaa" of UT, could mean he knows exactly how to be a butler 😭

Once again Yana is bringing our attention to the notion of Undertaker being a butler and how he "definitely" can't be one. It seems like overkill for her to dedicate two half-pages just to telling us that UT's a lazy bitch who has no interest in helping r!Ciel manage the manor. Putting aside whether he's lying or not, I think it's very interesting that she's bringing our attention to UT + butlerhood at all (especially because I'd already come up with this theory before remembering this part existed lmao.)

The phrasing in the second exchange also grabbed my attention, because the "knowledge of managing an estate" is one of the subjects that we are told the boys in Mastiff Class (the Polaris organ "donors") are studying.

Meaning, this could be a reference to the exact thing he was doing during his human life. (By bringing it up to deny it lmao.)

Overall, the biggest unknown factor is whether reapers get a new supernatural body when they die, or whether their human corpse is repurposed - though, ultimately, I feel the former is more likely, given that many families would hold funerals and burials and cremations and definitely notice if the corpse went missing post-death. Thus, it's reasonable to assume UT was given a separate body upon death and was therefore free to experiment with his corpse. (Because of course he would, that fucker.)

from my post here

the concept of UT damn near killing sebastian to see if he would risk his life for a phantomhive then saying “i knew you would do that, you’re his BUTLER after all.” (and it’s highlighted both in japanese and english)

the implication that he’s obsessed with this family because he was a butler at some point has me INSANE, but more than that, i think this is also fascinating to me.

i know it’s not canon but he would understand if you consider the entire plot of season 2 of the anime but ok

because wouldn’t that be such a funny full circle moment for the story? the butler showdown?

what if he understands? isn’t that exciting? wouldn’t it be perfect if this story ends with sebastian being able to feel what everyone seems to think he can’t feel?

-ancient roman posca: water, red or white wine vinegar, honey, salt, herbs (coriander, mint, thyme)

-switchel: water, ginger, vinegar, sweetener, lemon, salt

-ayran: yogurt, water, salt, mint

-sees the reports of the heatwave in Europe-

this drink is just as good if not better than sekanjabin and all you need is flixweed and sugar (water too ofc), anything else (saffron, etc) are optional and it’s far more palatable for europeans (who are suffering from the current heatwave) than sweet minty vinegar water (which is delicious but requires you to be a bit more adventurous)

1. it wasn’t an attempt to start a conversation, because i’ve learned my lesson not to get involved in discussions, so it’s kind of bitchy behavior to publicly disagree with someone and tag them so they have to see it, but not wanting to talk to them. and i don’t think the broader context would have changed anything anyway, because you simply focused on another side of their relationship.

2. the post wasn’t meant to criticize you, it was meant to use that sentence as a starting point to show that their thoughts can contradict their feelings. i could have said, “people think sbcl are afraid to show each other their vulnerable side because the other person would look down on them,” and then you probably would have felt even more targeted.

3. didn’t reblog your entire post because last time you were upset that i only responded to one specific part of it, so i’d wanted to avoid that with others as well.

4. if i had tagged you, even more people would have associated you with the idea that their bond is weaker than it actually is. as it is now, it’s just a quote, but i can promise you that a lot of them wouldn’t have clicked through to read your post. that’s just how people are, so many of them would have simply assumed that was specifically yours, and not just some random’s opinion, without any additional context.

5. i’m literally guilty of the same thing, because i didn’t even click on that account, so i didn’t know it was your post, when it’s clearly stated in your bio. i read the post, thought i’d show how i see it, wrote my own, and moved on with my life. now i know those words came specifically from you, and i have a certain image of sbcl’s relationship in your interpretation in my head. had i known that, i wouldn’t have posted it.

*original post is from may 2025, i rbd it on 24th june 26, you quoted me less than 40 minutes later, you liked MY rb then unliked it

4. next time you can make up a hypothetical quote or use an anti’s quote because i am sure there are MANY quotes far more worthy than mine or any other sbcl shipper’s. anyone who reads my full post will know that i do not think their bond is weaker than it is.

3. so what happened with me has nothing to do with taking another sebaciel shipper’s post (because you say you didn’t know it was me, let’s assume some absolute rando wrote it) and using a snippet of their words to write your own analysis in opposition to. because that’s not necessary. it is not kind nor fair to take someone who is just as isolated as you in this fandom and use their words against them.

2. even if it wasn’t meant to criticise me, using a quote from someone then disagreeing with it is a form of criticism. i don’t think you’re attacking my character but you are criticising that sentence and i was the one who wrote it as part of an analysis from a year ago that you found through my blog where i say i wrote it. but you said you didn’t know it was me so let’s assume you didn’t see the past where i said i wrote it. moving on.

1. alright thanks for starting it off by calling me a bitch. anyway you know when you disagree with someone, there needs to be an actual disagreement. we aren’t disagreeing because i didn’t say these two don’t show weakness to each other or that they look down on each other for showing weakness, i said they’re afraid of being seen as weak by each other. the unclear way your post is worded is the only thing i disagree with:

hey so “i can’t believe they don’t notice that every one of those moments make them rely on each other even more” you’re making it sound like op (me) is someone who doesn’t notice something that i have talked about before (weakness bringing these two together).

maybe it wasn’t your intention, but that’s how it reads