As you might be aware, Rem has another twin sister named Ram, and they both share quite similar features, both wearing the same maid outfits and whatnot. The distinctive difference between the two is thanks to her hair, as Rem’s bangs cover her right eye, and Ram’s covering her left.

First and foremost, who could resist that cute kawaii face of hers? Although despite her cute appearance, she can be ‘savage’ against Subaru, as in the early episodes of the series, she seemed to often criticize him for a lot of things, but the ‘ice wall’ between her and Subaru did eventually melt and somehow Subaru melted the ice in her heart, making her much cheerful in the later episodes of the series.

Even when Rem’s resting facial features gives off a neutral, expressionless, and innocent vibe, it’s still quite attractive. No lies.

So in the previous entry, you’d agree that Rem has a pretty cute face and overall is found attractive by many amongst fans, even more so since she has a maid outfit worn pretty much every single episode. But Rem bears a dark secret. She is actually a demon, a one-horned demon to be precise.

This was first seen in episode 9 of the series, when Rem got ‘triggered’ after the attack of the Mabeast, and transforms into her demon form revealing a horn on top of her head. It was kind of an unexpected scene since her general appearance were so ‘angelic’, innocent and cute, but nonetheless, she is a badass in disguise when she went full ‘serious-mode’ on the Mabeasts.

Pretty looks, and a real strong badass ability to just slaughter monsters, what a combination.

Now from the previous entry, it was revealed that Rem was a Demon, which naturally makes Ram, her twin sister, a demon as well. Being a one-horned demon isn’t acceptable in the demon society since demons naturally have two horns. But since Ram and Rem were born with a single horn each, it was considered a disgrace to the demon clan and must be disposed of.

Following the incident, the ceremonial killing was stopped thanks to Ram’s display of powers, despite only having one horn. The demon clan village was awed and amazed by how strong and powerful Ram is at such a young age.

At one point, the Witch’s Cult attacked the demon village, and in that process, Ram lost her only demon horn and with it, all her powers. Ever since the incident, Rem’s always trying very hard to do things and often feels inferior towards her sister as atonement for the thoughts she had when Ram lost her horn, as revealed in episode 11.

From what was implied in the previous entry, Rem tries very hard to atone for what happened to Ram during their childhood, because Rem was hinted to have part of her being glad that Ram’s horns were broken off by members of the Witch’s Cult. Thanks to this, Rem is actually very efficient regarding household tasks and whatnot.

It was revealed in episode 4, that Rem is very effective with chores, even better than Ram, actually. Great with cleaning, cooking, the perfect wife or waifu material. In episode 5 of the series, Ram also revealed that it was Rem who tends to everyone’s hair, and she helps her dress and gets ready for the morning which perhaps is the reason why Ram’s hair looked alike with Rem’s.

Rem deeply believes that she is a replacement of Ram, and tries her best to do everything the best she could, or at least be better than Ram, in order for her not to feel useless.

This last entry is probably the most quintessential part of Rem’s character as a whole. In a scene when Subaru is going through his mental breakdown in episode 18, Rem gave an amazing and emotional speech to ‘open’ Subaru’s eyes.

“That’s why I believe. No matter what painful things happen, even when it looks like you’ll lose… When no one else in the world believes in you, when you don’t even believe in yourself… I will believe.”

“If you cannot forgive yourself, for being empty and having nothing, then let us start from here, right now. Just like you started time for me when it was stopped, we will make sure the time that is stopped for you begins to move again. Let us start from here. From square one. No, from ZERO!”

Thanks to Rem, Subaru came back to realization and was on his feet again. But after an emotional confession from Rem, Subaru straight up friend-zoned her on the spot saying, “I love Emilia.” And even then, Rem still remained faithful and very supportive for Subaru which just adds loads of points to Rem’s character as a whole.

Because of this emotional scene, you can hear a lot of fan rage from team Rem x Subaru, claiming how big of an idiot Subaru is for dumping Rem, but who’s going to end with Subaru? Only the writers of this anime know.