There are other 10/10 that have a personality that at least go beyond general niceness
>implying the half-elf wouldn't go full yandere and go on a killing spree after getting cucked by the blueberry.
But the blueberry is fine being a mistress
The way she is presented makes her feel more like a side character than a heroine.
She has hardly no personality.
Not enough background on her character.
There are more reasons.
Rem is more of a heroine and is best girl.
A slave is boring
Rem will make you happy without being a shallow yes-man
>Her being fine as a mistress
If Ram's horn didn't get cut off she would have went full Cain and Able. I doubt she'll settle for mistress especially now knowing just how much the man loves her.
The extreme guilt from Ram's incident that gripped her for a decade makes her unable to be selfish if this means damagin others on any measure for her desires; she doesn't like being a mistress/concubine/second wife but is a compromise she's willing to tolerate to have subaru without antagonizing Emilia
The fact that the writer expects us to buy that Barusu is in love with her is one of my least favourite things about the series. It just doesn't feel like there is anything there at all. She's just a cardboard cutout princess for Barusu to save or a reward for him to strive for. I liked Re Zero but I really hope s2 improves her, because right now it's a pretty weak link.
At least it seems that subaru being this shallow is intentional, as in the story arcs following the anime he gets criticized by other characters for how he deals with the relationship
Plus there isn't much focus on Emilia in herself, more Subaru's feelings toward her. She feels that way because that's the illusion being projected and will need to be dispelled to come to love or at least care for her and not his fantasies.
Well she is written to be the "idealized girl". Which was supposed to be Subaru's wet dream come true.
Which is probably why Subaru is much more deeply affectionate to Rem when compared to Emilia.
"You better put that skirt down before you get hurt, you lil' thottie."
>Emiliafags starting to panic
>Now I'll pretend to be super partes in an attempt to shift the blame on remfags
But it doesn't work because you are the one who got in a fit because someone pointed out that Rem being cucked is a wrong statement