Evelyn, had search the library high and low for a way to remedy the mistake and finally found something.
It’s was creation of core.
No matter which world is either the magic world containing mana or xianxia world with spiritual energy.
In order to cultivate any type of energy.
Every species require to have core inside there body.
Only then one can absorb the energy present in the air and cultivate it to become more stronger.
Evelyn, original intention is to create the formula to form the core and pass it down to the future self that needed it.
But each type of core require different type of material.
In the end Evelyn found a core which can absorb all type of energies.
She call it Null core.
Her real intention is ensure that the future Aelith if she manage to awaken the library early.
Then she can use the formula to form the core and resist the sacrifice.
At the same time she was worried about the previous incidents happening.
So, she can only pray to the heaven for the future Aelith to discover the library early and form the core.
After all, if the library is awaken early then future aelith will know about the sacrifice being useless.
But human heart is complicated if other force her to sacrifice herself.
Then she will not able to fight hundreds of people.
So, Evelyn wanted the future Aelith to have enough strength to stop others from forcefully sacrificing her.
Hence, the core came into the view.
But the material needed to create the core is only found in magical worlds.
So, Evelyn wasn’t able to create the formula.
Then the task end up in the hand of 67th self who was also born in normal world.
But her 78th self came up with bizzare idea, which heaven knows how but end up working for some degree.
She took the chemical structure of each herbs needed to create the core and reconstruct it using various different herbs.
She actually succeed into recreating three herbs out of ten using this method, which open more doors for the future self.
Her 81th self actually started her book with criticism against her past self.
“I don’t know which one of them thought that everyone will be able to earn money eventually, that no bother to leave some financial aid for the future self. But worry not my future self I, Hinata is very smart, beautiful and generous women. I, will left some financial aid for other and make sure you do that too”
The next page made current Aelith actually widen her eyes in shock.
‘we can do that too’ the question encho inside her mind.
Normally, they can only left behind books, no stuff.
That why no other self ever had left any financial aid for others.
As they can’t do that.
As soon as they left anything behind, the moment they leave the library, any item left will follow them out.
But hinata manage to find a loophole.
She actually cut the book pages, creating empty space in square shape inside the book.
In that empty space is a small gold biscuit weighing about 100 gm.
This small bar can actually exchange for money according to the exchange ratio of any world.
No matter what world one might visit, gold is universal currency.
As long as they are in mortal the gold can be used.
In some magical world currency like spirit jade or spirit stone are used.
So, as long as they aren’t in those world.
The gold can be used also hinata didn’t left very large piece.
100gm golden biscuit will not attract as much attention as 1kg bar.
This was actually very smart decision made by her.
If they are rich, they will not use the aid.
If they not rich they will use the gold to earn the capital, then turn it tenfold.
They will refill the book and also left one in there own self.
In simple words after 81th life there are total of 16 golden biscuit in the books left behind.
The remaining four lives were the one with self not discovering the library.
Aelith, don’t need the aid so she didn’t touch the gold.
Her 93rd self was born in magical world called Asthenia.
She was able to find all of the herbs that’s needed for core formation.
She then seal the seeds for the herbs in a bottle and use the Hinata method to store the seed inside the book.
There are total of 100 seeds for each type of herbs.
Only one herbs had 3 seeds of it, which create difficulty for other future self.
As everyone knows if they use up the seed then there’s might be chance that future Aelith will not have the seed.
But the temptations of something as magical as core made them still move 95th self use the seed and made records.
But when it’s turn to combine all nine herbs to form the formula she failed.
Her successfull growing the seed into bloomed plant result into one more seeds to use.
In other words, as long as other self can grow the plant, another seed will appear.
But each plant can only bore one seed.
So, the seed had to be successfully grown into plant or else it will end up waste.
Her 96th and 97th failed to grow the plant wasting two seed leaving only one.
Her 98th self succeed and manage to gain both plant and seed.
Not only that she also form the formula and consume it.
But what all self had not expected that core formation in the world were only mortal reside have many restrictions.
Her 98th self end up dead during the core formation process, this made 99th and 100th self to be wary about the consumption.
And try to find different method to strength the body before they can even think about consuming it.