Blood Contract : Trapped inside the bloody Otome game

I heard people get\'s transmigration into novels or games they had played before. . . but what is this??

[System : Welcome back to Blood Pact]
[#WARNING!#WARNING]
[#Unable to open Beginners guide]
[#(Unforseen)Event : Main Task : survive the \'1 day sacred trial\'.]
[Reward: Beginners guide.]
[Penalty upon failure: Death.]

...
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Tian Mao, Just a normal student, one day mysteriously found herself dying with severe internal injuries. When she opened her eyes again, she found herself in a completely different world of gray-wildness, nothing like she has seen before.

As she tried to make sense of her surroundings, a System window suddenly appeared, only to confused herself more as it was welcoming her into an otome game she didn\'t even play before.

Why is she here of all places?? How did she die??

The questions aside, she focused on her survival with her new identity, as this world was bloodthirsty in every aspect. . .
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To survive she has to choose Among choices the system give her. Leading her to choose between life and death as a hunter and Li Tai, a vampire who saved her countless times in this post apocalypse world of endless nightmare.

[Would you like to open the hidden route?]