No Mary Sue
No naive heroine
No tragedy
The heroine is absolutely perfect
The heroine is Cain's older sister, the progenitor of vampires
Stronger and more perfect than Cain
Cold and wary even around friends she knows well
A petite, busty girl who looks 15
See how the heroine charms the handsome men of various anime worlds
I'm a beginner, so please forgive me if my writing isn't very good, and I'd appreciate any advice...