I was crying but

From what I understand, the modern life Judith lived in before she transmigrated was basically her next life. She thought she transmigrated to a novel, but it was actually her previous life

You may forgot, or bcos the 2chapters of bad translation, but its already said her first life is modern time. Second life reincarnate as judith. in this time she slowly forgot her modern self. Third life, now, she swept up by Luca regression. She only remember her first life, while remembering second life as a novel.
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Btw i teared up too

Thank you for the explanation, I finally understand now since it was so confused be4 that even I was sobbing, have to stop a min to think abt it XD

The first life of Judith was that of the modern world. In the modern world she live there peacefully and died of old age. And she was reborn in Judith, which make it her second life. In this life she died getting killed by Frantz but since Luca regressed the time she also got mixed up with it. Forgetting most of her childhood but remembering the thing happening to Luca and since she only remember some part of her first life in the modern world she got it mixed up and thought her second life was a story she read since she love a story with revenge. But it was actually her second life in which she died