To pay for his younger sister's medical treatment, Gao Feng took a part-time food delivery job during the holidays. One stormy night, he accepted an urgent delivery to a cemetery. After receiving a 500-yuan tip, he thought his luck had finally turned.
The next second, Ling Yue, the icy beauty admired by every boy at school, pounced on him and sank her fangs into his neck.
When he opened his eyes again, he had become a half-breed vampire-jiangshi, and a Myriad Worlds Bloodline Furnace System had appeared in his mind.
"Ding! Fuse vampire and jiangshi genes to gain copper skin and iron bones!"
"Ding! Defeat a Maoshan Taoist and unlock surging corpse blood!"
From then on, at night he was a delivery guy earning money for his sister's chemotherapy, while by day he was an ancestral vampire-jiangshi with a junior schoolmate chasing after him and calling him Daddy.
"Senior, can I borrow some more blood?"
"Junior, beat me first. After all, you were the one who bit me last time!"
Neither the Western vampires, the Eastern jiangshi, nor the state would tolerate such an extraordinary being.
Many years later, he looked back, and all the myriad worlds bowed before him!
He had become the ancestor of all vampire-jiangshi!
The description is quite good, but why does the protagonist feel so frustrated?