I can't believe my big ass sword is so frail in another world !

A malicious wyvern is terrorizing your village. Among the fiends who serve her, she is known as Chaikog, The Flapping Wings of Death. A renowned mage gives you an enchanted sword that can defeat any enemy in the world with one strike. There’s one problem though. You can use the sword ONCE. Before you can raise your sword against Chaikog, you have to defeat her army. Make sure you unleash the magi…