Blood is Thicker Than Tea

After transmigrating into a visual novel, "Clarissa Miele" is living the high life of a duke's daughter. She's rich, engaged to a baron, and doomed to die before the heroine even makes her first choice. But when the story starts to go into all too familiar direction, finding a way to survive past the common route becomes the least of her problems.

There are a total of 18 endings.
Hector: 4 bad ends, 1 good end
Tristan: 2 bad ends, 4 normal ends, 1 good end
Ronan: 2 bad ends, 2 normal ends, 1 good end, and the final end