Dark Couteau

''I've been waiting for you young warriors. So you were the ones that defeated Darth Hades? Hmph. That's quite disappointing to hear. I knew Hades was weak but to lose to heroes likes of you? It brings up the question as to why she ever became one of Mephistopheles's chosen ones. I'm sure her overconfidence and carelessness is what did her in. However, I assure you that I will not fall as easily as her. You'll soon find out that there are worst things than the embrace of Death. Especially you, Scarlet.''

Dark Testarossa is a primary antagonist in Sword of Kings Storyline 3nd Saga. She is a demonic version of Scarlet Testarossa created by Leohart the Prince of Hell with the aim to create a powerful Demonic Abyssal Punisher. She will face Scarlet, Yuuchiro and Nagi. She is also one of the Nine Demon Gates member and is a stronger demon in Triggers Hell.