Warning: Possible spoilers for those reading the official translated chapters.
Theories for Kubera:
- It's already been stated that the Sword is capable of such a feat, at least in Yuta's hands, and given the presence of a gate between realms in one of the preview images for the season, there is a chance that said gate will be opened using said Sword. Given that Yuta and Leez (and God Kubera) are currently capable of wielding the Sword, they would be the ones most likely to exploit its ability, though for what purpose can range from getting somewhere to bringing in someone from one of the other realms.
- We know that after the Cataclysm, both the gods and superior sura found themselves cut off from the human realm, and that magic, which comes from borrowing power from the gods, is not what it once was. Any gods and Nastika are also unable to use their full power in the human realm due to the rules of summoning and the ban on transformations (Gandharva's case notwithstanding). Furthermore, humans were until recently finally learning to cope with a world without gods to guide them.
Recent events however, have seen the return of not only superior sura and gods to the human realm, but also the use of Chaos magic and the continued rise of the associated clan. With the clan of Chaos growing stronger, other sura clans could soon find themselves risking of the fate of the Gandharva clan. In fact, that devastated clan aside, most of the other clans seem to have found themselves heavily weakened since their own respective heydays. What superior sura are in the human realm are for the most part not Nastika, with the actual Nastika present weakened to varying extents, leaving them vulnerable. It is a similar situation with the two Astika currently in the human realm.
Meanwhile, on the human front, things have not quite returned to how they used to be. Due to Agni's relative lack of action, the humans are likely to respond to threats on their own, and the upcoming battle at Rindhallow likely will see the magicians presently on Aeroplateau playing an important part. On a more social note, with discrimination against Halfs rampant, and superior sura mostly absent, in the long-term, Halfs (and perhaps Quarters) should become a smaller proportion of the overall human population.
With humans becoming more proactive, and the presence of the sura clans limited thus far within their realm, it is likely that Visnu foresaw humans moving beyond the gods and magic as it is by necessity, while giving the humans just enough breathing room to adapt accordingly. In addition, the presence of Yuta might spur development of defense mechanisms less reliant on magic, as humans would otherwise find themselves sitting ducks if more Chaos clan members entered the human realm, in turn perhaps inspiring the development of other forms of technology that do not require magic to function.
Perhaps by the end of the series, all this will contribute to a world more similar to our own, where gods and sura are legends from the past, technology works just fine without any sort of applied magic, and humans are forced to brave a universe where their own greatest enemies are themselves.
- Seems to be partially confirmed, but with a different god. Saha says that when he received an oracle from Surya, Surya said that he would like humans to be more self-reliant.
- With Visnu revealed to have cruely lied to his "friend" Gandharva, and his callous dismissal of all the people living on Carte, it's not unreasonable to think he may have just be using his insight to manipulate the beings that trust him to accomplish his objectives. Then, look how the gods dislike him as well. They very clearly don't trust him, and during The Finite, Yama calls him out on some of his manipulations.
- ...his transcendentals had been sealed by Takara. For Nastika taking their sura form is a trascendental. If he had his sura form sealed away by Takara, her death may have unsealed it, bypassing the seal Visnu created.
- He'll learn she's alive and she'll learn what happened during that month she can't remember.
- Well duh.
- And the wish will be granted. This guess is based on a few hints early in the story: When god Kubera asked her what she would wish for if a god asked her, Leez jokingly says riches, because "even a god couldn't give her what she really wanted", ie, her village. But if some god, who had reason to feel gratitude, or guilt because they've screwed up her life forever by starting the man-hunt on her name and making sure her dad got killed... Like, say, Vishnu, asked Kubera in all seriousness for what she wanted... Well. When Asha got the opportunity to ask for a wish, she asked for power, instead of her village back, which was something Vishnu commented on. It makes sense from a story perspective, and for Leez, it's the happiest ending. Vishnu did promise that Leez would "grow to be happier than anyone". But even more than that, there is actual foreshadowing: When Lorraine went to Leez' village with her death-count machine, it said zero. No people had died. She assumed it was a mistake, but Vishnu is a god of time. What if, to fulfill Leez' wish in the future, he transports the entire village from the past to the future, right before the attack? Maruna's attack is so destructive, there's no obvious bodies left behind anyway, so he wouldn't notice the difference, nor would anyone else... Except for Lorraine's machine, apparently. What works against this theory, is Leez' dream in chapter 5, where Leez sees everyone from the village, and Leez' mom says "she has no place in her future", unlike Haaz and Kas, who were spared from the attack. Kubera didn't know Haaz and Kas were spared, so clearly the dream was supernatural. We're to presume they died, but "no place in Leez' future" doesn't mean they're dead, just that they're never gonna hang out anymore. Of course, it should leave a bitter feeling, to wish for them back, only to realize she couldn't be with them anyway, but this is Leez we're talking about. Even knowing it won't change anything, she'll wish for it, and will just be happy knowing that they're safe and happy somewhere out there.
- Kali gave her name to Yuta when he was born. She disappeared soon after because gods' existences are tied to their name. However, Yuta hasn't grown into his name, so Kali magic disappeared with his mother.
- He doesn't have Kali's memory since it was specifically implanted into Taraka.
- There's definitely something strange about her - Ran isn't afraid of her despite that fact that she's a Half, and Yuta wants to eat her. She's also the manager of the Eloth magic guild, which is noted as 'unprecedented' because as a Half she isn't capable of using magic. Saha is remarkably unconcerned with finding the Kubera in Eloth, and later mentions that he known who all the remaining Kuberas are. This could all be explained by the fact that she's one of the remaining people named Kubera. Saha wouldn't need to look for the Kubera in Eloth because she's by his side pretty much all the time. Yuta would want to eat her because he can sense her 'potential' as a name holder, and she could be the magic guild manager because as a person named after a god she is closer to the divine than most Halfs.
- Even Lutz finds her suspicious: when she says that there is someone named Kubera in Eloth, he asks her if there's anything more she wants to say.
- Nope. Tilda was a Red Herring that Saha deliberately set up to take the attention off of the actual Kubera in Eloth: Saha himself.
- Visnu stated in the past that Gandharva's name would bring him wondrous love, remarkable happiness, and friendship that transcends races. While Gandharva believed these three things to be Menaka, Shakuntala, and Visnu, it is heavily implied that Gandharva's guesses were erroneous to some extent. While the most popular choice for said friendship is Agni, why not take things a step further? Why not have it so that said third person is actually Leez?
There are two premises to this reasoning, one slightly nuttier than the other. Now granted, this is a really shallow and nonsensical reason for thinking this way, but assuming that Gandharva got the first two right, it is telling that his wife and daughter were both green-haired females. Why break the streak at two when there's a perfectly good candidate who fulfills this set of qualifications?
The second premise is based more around wordplay, and thus slightly less silly. Leez is a human with the Name of an Astika and a possible connection to Ananta. What is this if not a transcending of race in the greatest possible way?
- There is one problem with this theory: Gandharva's wife and daughter were not both green-haired. Menaka had navy blue hair.
- Having a divine affinity of 0 is practically unheard of for a pureblood human, but Leez isn't just any human - she has the Name of a god. Gods don't use magic, because magic is defined in this series as "borrowing power from a god", and why would they need to borrow magic from themselves? They just use transcendental skills instead - something that Leez is capable of, having an extremely high transcendental value.
- Jossed. Saha and Laila are also named Kubera and are normal, high ranked, magicians.
- During Asha's flashback at the end of vol 2, she says: "Since my divine affinity is low, it could be possible that I have high fiendish affinity". She doesn't explore this thought further, because Vishnu tells her it would be a waste of time, but Leez might be capable of it.
- Visnu often reveals hints of the future through riddles and roundabout descriptions, and his talk with Gandharva was no different. He brought up love, then happiness, and then friendship, in that very order. This is because those three things will or have arrived in that particular order. Assuming that Menaka is indeed that source of "wondrous love," then Shakuntala is indeed the source of "remarkable happiness," leaving one last candidate.
- Taking this a step further, not only is the order chronological, but it also hints at the causal relationship among them. Menaka was the source of love, and this relationship in turn brought about the birth of Shakuntala, who, as the one being capable of loving Gandharva without any agenda or conditions, was the source of his greatest happiness. Menaka's influence and Shakuntala in turn caused Gandharva to mellow considerably, causing Agni, who originally saw Gandharva merely as an enemy, as a potential ally and friend.
- Alternately, Visnu's comments about everything being a matter of what choices are made might actually tie into the hard decisions Gandharva has had to make regarding three particular characters. The first was the time when he was unable to protect Menaka, which was allegedly due to Gandharva being indecisive about some matter. Given that this may have been connected to how Shakuntala was kidnapped by the gods, it could be that Gandharva was placed into the difficult position of choosing between the great love of his life and the child who brought him happiness. Perhaps, as with later on, Gandharva found himself making his decision too late, and while Shakuntala was kept alive, he still lost Menaka, in short, he wound up choosing the source of his happiness over the person he loved romantically. Later on, he is forced into another difficult decision, when he is forced to choose between letting Teo die or giving up on his best chance of getting to Shakuntala. Once again, he is slow to decide, but here, he chooses to save Teo. Perhaps then, his friendship that transcends races might actually be with the potential friend he chose over the source of his happiness.
- All of them share a hereditary attribute of "darkness", Sagara's source attribute. Sagara is stated to have had many lovers and children.
- Riagara, who Sagara's shown to be somewhat protective of, might be her daughter with Vasuki. She also has a hereditary attribute of "fire" and lived with Vasuki in Taksaka's nest.
- Pingara has the hereditary attribute of "sky" like Manasvin as well. However, s/he's doesn't look up to Sagara nearly as much.
- It fits with the Anti-Magic properties of the beings and items already associated with her.