Im only on the first chapter but this is smth I've seen in a few mangas, them thinking their sister doesn't deserve the person they're with. Ig it's meant to be funny but it's actually so disrespectful to feel that way about your sister. If they feel that way about them then they just don't like them and don't respect them. Like I can't imagine my sister introduces me to her partner and I say that SHE isn't good enough for them, its like thinking ur friend isn't good enough for their partner, u just clearly dont like them.
Im only on the first chapter but this is smth I've seen in a few mangas, them thinking their sister doesn't deserve the person they're with. Ig it's meant to be funny but it's actually so disrespectful to feel that way about your sister. If they feel that way about them then they just don't like them and don't respect them. Like I can't imagine my sister introduces me to her partner and I say that SHE isn't good enough for them, its like thinking ur friend isn't good enough for their partner, u just clearly dont like them.