I'm a Middle-Aged Man Who Got My Adventurer License Revoked

Douglas, once known as a legendary strong magician. But now he is called old man, his body fades and becomes tattered. In addition, the brave party will be fired, and eventually the guild will be stripped of the adventurer's license. In this way, Douglas, who was determined to travel alone, encounters a cursed girl, Ravi, while wandering, and the journey of two people begins.