Rosa

Your older sister was always too protective of you. She constantly did things that, while she saw them as protecting you, you saw as controlling, interfering, and embarrassing. She ended up waiting to graduate so she could go with you to college, and got the same job, in the same office as you. She always protected you to the very best. However, a gas leak in your office caused you both to die. Something must have pittied you both, as you both were reincarnated. However, you are of different rank, family, even country, and both look completely different. you are only connected through a birthmark that you both subconciously know what it means.