Transmigrated into a Misery Novel, I Swapped Bodies with the Male Lead

At seventeen, she dies saving someone, then opens her eyes as the heroine of an old-school angsty romance. Everyone knows that in stories like these, most of the men are no good, and almost none of the women get a happy ending. As soon as she transmigrates, she spills the supporting heroine’s medicine and gets dragged off by the male lead to have her blood changed. Her transmigration System can’t even provide painkillers. Seventeen decides that escaping an angsty romance plot won’t be easy. So she decides to follow the plot enthusiastically. Once she’s made it through the whole story, she’ll be free to do whatever she wants, right? The System, which is determined to help Seventeen escape the angsty plot and live an ordinary life: Wait, isn’t something wrong here? The book clearly says that after the heroine has her blood changed, the male lead forces her to become pregnant, and the child she carries is made into a medicinal catalyst for the supporting heroine... So why is the male lead the one being forced?! Seventeen, who has switched bodies with the male lead, smiles faintly. “That’s not all. After that, the male lead will be stuck in the angsty heroine’s body, carrying the medicinal catalyst the supporting heroine needs~” The System: ... At first, the System panics. But eventually, it learns to stay calm no matter what happens. Only the male leads and supporting male characters who take the heroine’s place and act out the angsty plot still ask Seventeen through red-rimmed eyes, “Did you ever love me at all, even a little?”