Past Life

What if...you were all ready alive in the past but you just have no memories of your past self?

What if your past self had been in love with an immortal, for example a half demon. Then by this time that immortal was still alive.

Then one day a portal to some other dimension took you and brought you to another world; to the world where your other self resided before.

Then this immortal your past self had loved before was put into a spell by you before your past existence passed away.

Actually immortals don't die and I accept that. Then you tried to remove that spell. At that time you had no idea how to do that but you were be able to awaken the immortal once more.

Then that immortal notices your appearance; you definitely resemble the person that immortal grew feelings with, but at the same time with disappointment.

Then someday you realize that you were just the reincarnation of that person, but you also had the power you once had before. You were so mixed up, and here comes some demons trying to capture you to revive your past body, they'll try to get your soul and put it to your past body. Your past existence did disappear but the remains were very useful for that body still had the power to kill the most powerful demon, and your present body has also the same amount of power, however that power which resides in your body is still not awakened.

So...what'll you do? What'll be your reaction? :)