Reborn as the Frail Eldest Princess

[Alternate world] In her previous life, she married the wrong man. Fortunately, she realized her mistake in time and put her young brother on the throne, but she died before she could reform the court, worn down by worry. In this life, she is reborn at the very beginning of it all. She gets a fresh start, only to find that things aren’t as simple as she imagined! At a spring-viewing banquet, she is poisoned and falls unconscious. When she wakes, she discovers she is engaged to that Grand Tutor? Her father dotes on her, yet has grown suspicious of her and her mother. Could he have been suspicious all along? She asks, “What would you do if I rebelled against the throne?” He answers, “I would stand by Your Highness, of course!”