Isekai'd as a side character

In the reborn world, the Crown Princess is voted for. I'm a very normal extra, so it's nothing to do with me. But why did I become a candidate for the Crown Princess?
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Oh Mari was a completely ordinary Korean woman until she reincarnated in the novel “My Dorothea” as the heroine's best friend, Maristella Janice La Bellefleur. Aware of the fact that the heroine, Dorothea, ends up betraying Maristella, which leads to her execution, she vows to do her utmost to survive and live her new life to the fullest.
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I spent a carefree day lounging about after paying off my tuition loans, but ended waking up inside a novel as the Amel, the only daughter of a poor count. Even if I worked for the rest of my life, the debt my family accumulated is too much for me to even be able to pay off. Not only that, but it seems that I ended up having a one-night experience with Kyle, the male lead, after getting stupid drunk...
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○ : sex w/ one party drunk

My favorite second male lead, Kaelus, died. Living in poverty without him, I eventually became ill and died as well. I thought I would return to reality, but I went back in time instead. This is definitely… This means I have to save my beloved, right?
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