#peables-rambles

On one hand, we have Diluc, the only child of one of Mondstadt’s beloved noble families. He comes from a line of highly respected individuals, the descendent of one of the leaders who freed Mondstadt from the tyranny of Decarabian. Although his mother died young, he grew up in a nurturing and loving family with his father. From the manga, we can tell that his personality was somewhere along the lines of Amber and Klee when he was younger, and I think he was probably a brash and jovial kid who caused problems but was earnest in everything he did.

On the other hand we have Kaeya. Here is where a lot of my headcanons come into play, because there’s very little on his family. I strongly believe in Kaeya as Khaneri’ahn royalty (a descendent at the very least), and that he belongs to the Eclipse Dynasty bloodline. It’s unclear the type of rule of the dynasty, but my thoughts are that it was not cruel but definitely cold. Kaeya likely did not grow up with much affection, respected but not loved. He entered the story with the destiny of a kingdom on his shoulders, and was left to fulfill it on his own. As such, I see him as a guarded, probably extremely introverted kid, especially when he’s first taken in by the Ragnvindrs.

Obviously, this contrasts with their in-game personalities. I still think Kaeya is a true introvert but acts extraverted to come off as more open and trustworthy in order to get what he wants. This is clear in how almost every quest or event interaction with him has some sort of “ulterior” motive. His story quest was him testing the waters with the traveler to see how trustworthy they were, the Windblume Festival was very likely an easter egg conversation for a later quest, and he definitely lied abut the reason for coming to the Golden Apple Archipelago. In short, all these interactions are only half-truths at best.

I similarly think the opposite happened to Diluc, his grief and vengeance stifling the unbridled joy from his youth. I wouldn’t say he’s still a people-person, but his voice-lines make it so clear how affectionate and warm he is to everyone; he worries about Jean and the Traveller, openly admires Lisa’s skills, etc. His 18th birthday and his four-year journey exposed him to the world at its rawest, away from the tinted lens of the Knights, and he likely saw and dealt out more death than he thought he’d ever have to.

After Crepus’ death, the brothers reconciled with the events by changing their nature - at least, how they presented themselves to others. While not mirrors, they definitely took on parts of the other’s childhood self, with Kaeya becoming more verbal and Diluc becoming more skeptical. 

As much as I want it to happen, I don’t think we’ll get a reconciliation of the brothers until one of their last moments. Mihoyo has made it clear they don’t intend to shy away from major character deaths, dropping red flags in abundance for multiple characters. Kaeya is definitely one of them, and my thinking is that he’ll die by Diluc’s hands in an effort to save Mondstadt. Either that, or they’ll be on the cusp of progress before plummeting into the worst-case scenario.

And be- cause I’m a sucker not just for angst but for sucker punch and then a stab to the gut - I’ll put this here as well: although they clearly aren’t exactly on the best terms right now, I truly believe they have both forgiven each other but don’t believe the other has forgiven them yet. Their voice-lines about each other don’t seem honest, and their easy banter at the Golden Apple Archipelago shows so much familiarity. Their relationship is still uneasy, clearly seen in Venti’s story quest, but it is entirely salvageable. Kaeya is ready to atone for abandoning DIluc to his grief and compounding it with a secret too large to stay hidden forever. Diluc is ready to repent for driving Kaeya to death and casting him out form a place he’d felt was the closest to home he could let himself be.

(Would love for a happy ending too, but I don’t trust Mihoyo to give me happy Diluc and happy Kaeya for any lasting duration rip.)

It’s clear that the two are meant to be foils to each other. I could go on and on about smaller things, like Kaeya feeling inadequate filling Diluc’s prodigious shoes, Diluc finding his first true friend in Kaeya, the both of them defending each other behind their backs. I could also go into how other characters perceive their relationship, especially Jean since she’s known them since childhood as well. But at the end of the day, they are simply two men with a broken past that cannot be restored, but can be fixed. Them making up would ease so much off both of their shoulders, and they could fight side by side like I’m certain they did when they were younger.