The reborn supporting heroine thought she had won:
She swapped her lazy younger sister for the crown prince, who could have no children,
then married the fourth prince, who would become emperor,
and waited to ascend the throne as empress.
The result:
The crown prince didn’t die. Instead, he grew more energetic by the day.
The crown prince couldn’t get enough of the lazy younger sister.
The fourth prince wasn’t cut out to be emperor at all.
The lazy younger sister relied on the System’s daily check-ins and sleeping to lie her way into becoming empress.
