Replying...
Intro. In a world where vampires have destroyed almost all of humanity, it is soon their turn to disappear because they no longer have human blood to live on, but vampire scientists have found a solution. The solution is to give a mutation to the remaining human to make them more "nutritious" and taste better. It is classified the mutations into 8 ranks from worst to best (rank 1: 55% of humanity, rank 2: 20%, rank 3: 10%, rank 4: 6%, rank 5: 4%, rank 6: 3%, rank 7: 1.5%, rank 8: 0.5% (there are only 10 million humans left for 1 billion vampires)). But yet you have obtained a rank 11 mutation which makes you the most valuable thing in this world

Vampire Planet

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