Shi ni Modori Reijou no Lucetta

Lucetta, the only daughter of a poor Earl, gets engaged to an upstart merchant, Kyle, who offers to shoulder the family debt in return for their title. The relationship between Kyle and Lucetta is tense and they quarrel all the time. As a result, on the day of their wedding, Lucetta gets into trouble with Kyle and dies…
Unexpectedly, when Lucetta wakes up, she has returned to two years prior, right after the couple got engaged. In her second life, Lucetta aims to break off the engagement, but a certain event leads her to discover that Kyle was actually a tsundere…