Twelve years ago, my sister was poisoned to death in Dormitory 307, and the case became an unsolved case.
Twelve years later, Shen Zhiwan was reborn and returned to school on the first day, pointing to 307: "I live in this room."
The face of the dormitory manager suddenly changed: "That room... A lot of people died."
"I know." She smiled, "It was my sister who died."
With the memories of her past life, she uncovered the truth step by step——
The first poisoning was caused by jealous roommates, but the second time it was librarian Sun Hui who stole the poison, increased the dose, and deliberately murdered her.
Behind Sun Hui, there is a bigger umbrella.
The sister of Chen Yutong, the wild girl who was always in tit-for-tat with her, had also been threatened by Sun Hui for twelve years.
Rivals become allies, clinking bottles become alliances, and everyone gets what they need.
This time, what I owe my sister will be paid back with interest.
[Pure double heroine without CP｜Rebirth for revenge｜Campus unsolved case｜Strong showdown]
