PROLOGUE
There is a theory, called the Multiverse theory, which suggests that there are multiple alternate dimensions which exist parallel to ours. They can either have minor differences or even major differences caused by the decisions made by the people who exist in the Multiverse. Therefore, the alternate dimensions in the Multiverse are created by choice and free will, where a person who decides to go right in one dimension might've gone left in another. While these decisions may not appear to have any major consequences, that is only because people are unaware of the domino effect their decisions could have in the present and future.
In one instance, a young girl attempts to break away from her tragic fate by going back, again and again and again. She does this to fight against fate, in order to survive, but she fails each and every time, ending up dying only to repeat the cycle again and again.
In another instance, a teenage girl attempts to save the life of her best friend by going back to change the course of destiny. However, each time she did she only ended up making things worse. The changes she causes have drastic consequences and she fails, only to repeat the cycle again and again.
Their decision and attempts to change fate had caused the creation of alternate universes and dimensions where the people are the same but events played out differently. However, they did not give up and in the end they were able to achieve the happy ending that they had fought for.
However, stories are never ending and when one chapter closes, another chapter opens.