World Tree Apocalypse: A Pilot In Another World LitRPG
C57/100Web serial by D.M. Rhodes (Razzmatazz)
When a nameless pilot breaks through a dimensional rift, he and his experimental fighter-plane become the only things standing between a dying world and the monstrous army marching to destroy the last World Tree and its keeper. A man trained to hunt in the skies above barren ash-lands must now become the last protector of the perfect garden below. A soldier with as much blood on his hands as engine grease must find a way to live alongside a peaceful forest dryad — the tree's sole caretaker — as the invasion waves grow stronger with each passing cycle. As one nation after another falls, a transmigrated war pilot flying an experimental combat aircraft may be the only hope left for the world's many races, the sacred tree, and the peace-loving dryad who tends it.