Darkwing is a recurring contract monster in Kamen Rider Ryuki, serving as the partner of Kamen Rider Knight. He is a bat-like Mirror Monster with a dark, intimidating presence and an important role in Knight’s ability to fight in the Mirror World. Darkwing assists his rider in combat, transportation, and survival within the dangerous mirror dimension. Although not a human character, he is memorable for his loyal support role and for being one of the more recognizable allied monsters in the series.