I don't even need to put a summary this basically your typical reincarnation historical fantasy where the MC is inlove with the Immortal ML but the ML is deep denial and only realize his love for the MC in the next life where as the MC don't remeber shit and have deep haterd for the ML and in stories like this these the main cause of conflict is because of HoNOr , AnD Can'T lOVe mEn bECauSe iT's HumILiAtinG aND diSGracE tO tHe FAmilY. Don't find stories like quite likable but it sure is entertaining
Seek For Three Lifetimes