I think I understand I'm not sure due to the fuc**** translation. Guys this is just my opinion on what I think is happening.
Ok so I believe the brother really does love his sister but is just jealous of her. Due to her being more loved by their grandfather and having more magic then him. Bc to him it looks like she's having a more carefree life. While he has to be this perfect picture of a son for their parents and have to work hard since he's the oldest and their parents expect a lot of things from him. And the things he says he doesn't realise that it hurts his sister and I think it creates a misunderstanding so the gap between them is big. Or he just doesn't know how to act around his sister so he copies his parents. Now I can understand why he's like this bc of their piece of sh** parents and he also has his own demons. But still doesn't justify for not looking out for her as her big brother. Now im hoping everything is true and the relationship between them will either heal or he decideds to stay away for his sister's sake.
Ok so I believe the brother really does love his sister but is just jealous of her. Due to her being more loved by their grandfather and having more magic then him. Bc to him it looks like she's having a more carefree life. While he has to be this perfect picture of a son for their parents and have to work hard since he's the oldest and their parents expect a lot of things from him. And the things he says he doesn't realise that it hurts his sister and I think it creates a misunderstanding so the gap between them is big. Or he just doesn't know how to act around his sister so he copies his parents. Now I can understand why he's like this bc of their piece of sh** parents and he also has his own demons. But still doesn't justify for not looking out for her as her big brother. Now im hoping everything is true and the relationship between them will either heal or he decideds to stay away for his sister's sake.