My Status as an Assassin Obviously Exceeds the Hero's (Light Novel) Vol. 5

Having boarded their fancy new airship, Akira and company set off through the skies and straight into demon territory. Yet their journey is hardly smooth sailing, as they're set upon by a flock of ferocious wyverns--followed by an unexpected guest. When this powerful demon enters the stage, the airship's deck is engulfed in a raging windstorm of death. But as Akira prepares to fight back tooth and nail, a strange presence takes control of Amelia and gives both sides an ultimatum!