The Hunter & The Whisperer THATW

Vir is the last of the Vulcher race to survive the catastrophic massacre carried out by the al-Banix, the rulers of the Central Empire assisted by the four nations.
Surviving the massacre at the age of seven, Vir accidentally gained immunity to various poisons after eating the heart of a wyvern in a fit of rage.
As an adult, Vir became a hunter against dragon riders. Not just hunting them, Vir also killed the following riders with their dragons.
He mingled with the people of the four lands, disguised as a firewood collector.
One day, Vir meets a homeless little girl, and it turns out that the little girl also suffers the same fate as him.
The little girl was called Aira and was the last descendant of the Asurry race. Aira inherited her ancestor's abilities as a whisperer.
Vir's adventure, which was originally based solely on revenge, has now turned into something bigger: Gathering the exiles, then forming a force to build a new empire, and overthrow al-Banix's rule over eight other countries.
Follow the adventures of Vir and Aira in this story, in a sad and wonderful world filled with mythical creatures.