Oh. I had a feeling her backstory was something like that, though I am generally thankful that her family wasn't abusive or anything like that.
So... I take it Luka is going to remind her a lot of her sister (mostly in terms of how good he is and how effortless he makes koto playing look... On top of being very pretty) and she'll end up resenting and hating him for it? She wasn't Full Gremlin yet in the flashback, so I guess that came in later when she started dealing with Pretty Boy over there. 🤔
...
OK, I really hope Luka does turn out to be a good guy who just happens to rub her the wrong way. I still low-key ship them. 🫣