I see some people viewing Echidna as this honest person who is forthcoming about her intentions, but from what I saw of Season 2, that is not the case, and as for why I believe so:
- Echidna said that Satella, the Witch of Envy, killed and devoured the other Witches of Sin, using them as sustenance, which is 100% false since if that were the case, there would be no corpse of Echidna at the Sanctuary. Echidna has almost certainly been spreading this lie deliberately to unite the world against Satella in the future, and she likely had Beatrice unknowingly cooperate with her by having her tell this to outsiders like she did with Subaru.
- Ram previously indicated that folklore indicates that the great dragon that protects Lugunica lies beyond a Great Waterfall. Echidna said that Sekhmet, the Witch of Sloth, drove a dragon past the Great Waterfall all for a chance to rest, which is likely referring to the same dragon. I don’t dispute that Sekhmet may have wanted to catch a break, but as for why the info about the legendary dragon’s whereabouts is almost certainly false, if said dragon really were trapped beyond the Great Waterfall, how would the Royal Family have entered a covenant with it since it’d be beyond the end of the world? It doesn’t make sense and appears to be misdirection to keep common folk from seeking out this dragon.
- Echidna outwardly made it seem like she really wanted Subaru to enter into a contract with her, but that just doesn’t pass the sniff test based on the entirety of her actions in Season 2, which had a heavy bent toward Subaru rejecting her contract. For one, Echidna hinted to Subaru that the path forward is to have Emilia take the trials when he was determined to take the trials himself by suggesting that he might be able to give the cowardly princess wings when she (Echidna) had no hope of breaking Emilia outside of her shell even after three days of trial and error, which shows Echidna varied up the trial in multiple ways to try to get Emilia to pass the trial. Does that sound like someone who is trying to trap Subaru in a contract to you when she outwardly helped Subaru get through the Sanctuary arc 3 times and by her own admission tried to specifically help Emilia?
The second and third times Echidna showed she wanted Subaru to help Emilia pass the trials is when Echidna said that she gave Beatrice a blank book because she had wanted to see who Beatrice would choose and her follow-up remark to Subaru rejecting her contract. Echidna fully knew that Subaru is the one who would free Beatrice, and she specifically chose to tell Subaru what she did was because she wanted to seem so outrageously evil so as to deter Subaru from accepting her contract. This is backed up by Echidna saying to Subaru after he rejected her contract that she didn’t want him to think she was the only one of the Witches of Sin who is evil, which led to her revoking Subaru’s qualification for entering the tomb. Subaru was using his right to enter the tomb as a crutch at that point, and Echidna did him a major solid by taking it away so that he’d be forced to do all he could to help Emilia pass the trials. Thus, Echidna clearly knew how evil what she said about her motivations would sound. Echidna’s actions do not read as somebody who wanted to force Subaru to accept her contract no matter what. The true reason Beatrice’s book was empty was probably because Echidna needed Beatrice to stay in the library in case she died or something, and since all she did was stay in the library, there was no need for further instruction. If you’re still not convinced, think of it this way: A woman tells you she loves you. After this, she punches you in the face, asks the man who bullies you out on a date, and specifically calls you a wimp on social media. Can you agree that this woman does not love you?
Now for the real point of my post, Carmilla supposedly giving emotions to non-human beings is most likely not referring to insects or dragons but actually demihumans since the term non-human beings strikes me as being a term used to other people who aren’t pure-blood humans. And I believe it is highly likely that this information is completely and utterly false. Why that is the case is that it may have been a lie invented hundreds of years ago to discredit demihumans and eventually make them become second-class citizens. A hint to whether this was a lie may lie in which of demihumans or humans learned magic first. If demihumans knew magic first, humans may have learned magic from demihumans and then discredited the demihumans to supplant them as the dominant intelligent species of Re:Zero’s fantasy world. An example of this having previously happened in the real world is North American settlers weaponizing disinformation with the lie of the native peoples of the land being savages to justify the colonizing, displacing, and killing of Indigenous peoples even though the settlers were often the initiators of violence and savage acts against the native population. So demihumans being treated as second-class citizens may have been the reason for the Demihuman War, which was namedropped in Season 3.
This can be gleaned from context from the anime given there were demihuman-only businesses in Season 1 and how demihumans were drawn to the Sanctuary in Season 2 ’cause of the rumour of it being a safe place for demihumans despite it actually being a shoddy place that’s not very well-run, showing there is some underlying tension between humans and demihumans, if not across the whole world than just within Lugunica itself. And I do believe Tappei is savvy enough to include this sort of subject in Re:Zero given how there is so much unreliable narration in this series since it’s a storytelling technique that allows for a twist like this.
Given even insects in the real world can feel emotions, it doesn’t make a lot of sense to me that demihumans, whether pure-blood or not, couldn’t feel emotions at any point in history. It makes a lot more sense to me that Echidna spewed a lie, which Carmilla may or may not have been in on, to ensure that demihumans were discriminated against ’cause if people believed they only had emotions due to a Witch, they’d see demihumans as being inherently inferior, needing the help of a monstrous Witch they can’t understand to be on the same playing field as humans, and even then, the fact that they needed external help keeps them inferior in their eyes, especially if people have forgotten that the lie was originally about Carmilla and now attribute it to Satella, who’s the bogeyman for all the world’s evil. Even if the reason demihumans were discriminated against was forgotten over time, they’d still keep their second-class status ’cause of the lie even if it happened to take on another form. Specifically referring to them as “non-human beings” in the first place suggests an intent to undermine them from the beginning to me.
As for why Echidna would try to ensure that the Demihuman War happened when it did, the answer lies in Season 3. The primary reason Echidna would want the Demihuman War to happen would be to set up the current story with the troubles within the Astrea house. The Demihuman War hurt Theresia in having family members die ’cause she wouldn’t take up the sword, motivating her to truly take on her duties as the Sword Saint whereas it was just in name only previously due to her not wanting to fight. Theresia taking up her duties as the Sword Saint also saved Wilhelm from dying in that war, leading him to train hard so that he could surpass Theresia and relieve her of her duties as the Sword Saint so that he could marry into the family and relieve Theresia of the burden of doing something she never really wanted to but was forced into, resulting in the pair starting a family with the birth of Heinkel, who in turn would start of a family of his own with his wife who gave birth Reinhard. Thus, I see plenty of reason for Echidna to be involved in the start of the Demihuman War if one uses critical thinking given it was established that Echidna manipulated many events through Roswaal for hundreds of years, and causing the war that would eventually result in Reinhard’s grandparents getting married and herald the eventual birth of Reinhard would be fully in line with that.
As for why Echidna would want Reinhard to be born, Reinhard is one of the pieces needed to bring about the future in which the world stops being destroyed by the Witch of Envy and reconstructed as hinted by Melakuera when he talked about the world imbalance and Witch and remarked about him facing world-ending crises countless times, showing that he has likely experienced the end of the world countless times. I believe Re:Zero’s fantasy world is a stuck in a cycle of the world being destroyed and constructed due to an Authority or curse that affects the story path the world is following based on a battle from eons ago when I speculate that the Hero of the story in Re:Zero’s fantasy world faced off against the Final Boss of the time that the Hero chose his lover, who would become the Witch of Envy, over the world when the Seal in Elior Forest was opened, and in that moment, the Final Boss of the time activated his Authority or cursed the world to be biased toward repeating this general story path for all time, leading to countless iterations of the world being destroyed before getting reconstructed by a prototypical overpowered but selfish hero, leading to the heroes in the age of Satella starting a grand plan to hijack the story path to give Subaru the best chance of ending this cycle after somehow finding out about this cycle with Subaru being weak compared to past Heroes of the story intentional to prevent him from becoming conceited since Subaru needs to overcome his character flaws unlike those who came before him who never did.
Reinhard is needed to kill Satella in the future when she returns, and Satella and Echidna are likely on the same side given that Satella told Subaru to love himself and then one day come kill her and that Echidna did so much to ensure that Subaru rejected her contract and to shape the world to her liking through Roswaal’s not-quite-Tome of Wisdom and also the Witch Cult Gospels since if the not-quite-Tome of Wisdom was the prototype of the Gospels, they may have been made partially by the same materials, such as hair, nails, or body fluid from Echidna, meaning the text from both may come from Echidna’s mind through magic, showing why Subaru’s being put through the wringer time after time again all to be the true hero that defies the dreaded fate of him allowing the world to be destroyed ’cause of his feelings for his lover.