Reborn Before the College Entrance Exam, I Fell in Love with Studying

[No CP (with a romantic subplot) + Reborn + School life + System + Twists + Redemption]

“Pines grow in the south. Hello, everyone, my name is Nan Shan.”

At thirty, Nan Shan had achieved nothing when she died unexpectedly and was reborn in high school. She decided to work twice as hard to make up for the regrets of her past life.

After accidentally binding to a learning System and unlocking more skills, she decided she would master every one of them.

But then she discovered a secret involving herself and another girl:

There was another System at work!

Her older sister had also regained memories of her past life, and would help her weather the family turmoil!

In this life, how would she reclaim her destiny in this battle over fate?