I’ll Live a Long Life to Dote on My Favorite Stepbrother! | GOGOAnime

Synopsis:

Dawn was reborn as the son of a poor man. He couldn’t use magic due to illness and was destined for a short life, so he was taken in by the Duke’s family. There, she meets Orsis, who was her crush in a previous life. While this is a coincidence that is true, he remembers that it is because his love has lost its luster and begins to struggle to live long enough to continue loving her.