Greetings Aminul.
First, we need to ponder Qoran to understand what is " death"?
For example GOD said:
6:60
He is the One who puts you to death during the night, and knows even the smallest of your actions during the day. He resurrects you every morning, until your life span is fulfilled, then to Him is your ultimate return. He will then inform you of everything you had done.
وَهُوَ الَّذى يَتَوَفّىٰكُم بِالَّيلِ وَيَعلَمُ ما جَرَحتُم بِالنَّهارِ ثُمَّ يَبعَثُكُم فيهِ لِيُقضىٰ أَجَلٌ مُسَمًّى ثُمَّ إِلَيهِ مَرجِعُكُم ثُمَّ يُنَبِّئُكُم بِما كُنتُم تَعمَلونَ
This is to show us that death is like sleep.
As far as past life, Qoran also explains this to us:
38:67
Say, "Here is awesome news.
قُل هُوَ نَبَؤٌا۟ عَظيمٌ
38:68
"That you are totally oblivious to
أَنتُم عَنهُ مُعرِضونَ
38:69
"I had no knowledge previously, about the feud in the High Society.*
ما كانَ لِىَ مِن عِلمٍ بِالمَلَإِ الأَعلىٰ إِذ يَختَصِمونَ
We must have existed before this life? Why? Because we Are Born with Instinctive Knowledge About God* i.e A covenant.
7:172
Recall that your Lord summoned all the descendants of Adam, and had them bear witness for themselves: "Am I not your Lord?" They all said, "Yes. We bear witness." Thus, you cannot say on the Day of Resurrection, "We were not aware of this."
وَإِذ أَخَذَ رَبُّكَ مِن بَنى ءادَمَ مِن ظُهورِهِم ذُرِّيَّتَهُم وَأَشهَدَهُم عَلىٰ أَنفُسِهِم أَلَستُ بِرَبِّكُم قالوا بَلىٰ شَهِدنا أَن تَقولوا يَومَ القِيٰمَةِ إِنّا كُنّا عَن هٰذا غٰفِلينَ
36:60
Did I not covenant with you, O Children of Adam, that you shall not worship the devil? That he is your most ardent enemy?
أَلَم أَعهَد إِلَيكُم يٰبَنى ءادَمَ أَن لا تَعبُدُوا الشَّيطٰنَ إِنَّهُ لَكُم عَدُوٌّ مُبينٌ
In my opinion that is the only way " Original sin" will make sense?
43:5
Should we just ignore the fact that you have transgressed the limits?*
أَفَنَضرِبُ عَنكُمُ الذِّكرَ صَفحًا أَن كُنتُم قَومًا مُسرِفينَ
The Plan for Redemption ,is that we are given this chance/life to correct/or not?
Qoran then goes on to explain how to earn your salvation for another life after this one.
GOD bless you.
Peace.