Responses
perhaps it's nanatsu no taizai aka seven deadly sins? ( http://www.mangago.zone/read-manga/nanatsu_no_taizai/?TuIM)
Idk what this is but I wanna read it now so good luck hope you find it
OMG
im trying sooo harddd to remember what MANGA is thisss it's driving me insane!
Okay so the main couple was cursed by one of their families since they do not like their love. One was cursed to live a long timee with his/er memories while the other was cursed to die a be reincarnated without any memories.
edit: ITS EFFIN SEVEN DEADLY SINS U FORGETFUL ASSSSSSS