Estelle being a reincarnated person is really has no effect on this manhwa. Eventho she has memories of her past life, her style and action were like a child. Maybe it is (a little) understandable since she gained her memories later when she was about 4-5 years old, so maybe it’s like a distant memory to her origin children body. But until now, I can’t really get it why the author just had to make it isekai while it would be just fine if it isn’t. It’s kinda likely forced because of isekai trend in korea 😪. I kinda still hope there would be some kind of turning event or twist about her gained her past memories.