True Cross Son of Poseidon

Percy's mother was being hunted by monsters only a couple months after his birth. A vacation to Japan turned into her last days alive. Running from a Hellhound only to stumble across a church. Without wasting a second, she left him on the doorstep, continuing to lead the monster away with a bronze blade clutched tight...

Not an Elf

Apparently, in this world, having pointed ears makes you an elf. Great. In other news, Rin has fallen into a medieval world, and would like to know what exactly is going on. Number #1 in LOTR 5/5/21!!