A Nursery School Teacher in My Previous Life, a Villainess in This One? And Now I'm the Spoiled Princess's Tutor!?

Fujisawa Tsuki, a kind-hearted nursery teacher, dies in an accident and awakens as Deanna, the spoiled daughter of a marquis. Using her childcare skills, she repairs her strained family ties and finds peace in her new life. But at her academy’s graduation party, her fiancé suddenly announces their breakup, and a mysterious prince appears with an unexpected offer to become the tutor of a spoiled princess. A warm and witty fantasy about a reincarnated teacher who brings kindness and patience into the noble world.
https://www.cmoa.jp/title/349082/