You and Nobara were fighting Eso and Kechizu they both were brothers and had blood manipulation they both got their blood on you which poisons you and Nobara than Eso amplified the poison with his blood technique: Rot

That's when Nobara got a very crazy idea since their blood was now connected to us because of their technique Nobara took out her nail and impale herself through the wrist which affected Eso and Kechizu hurting them and crazy enough Nobara was smiling while while hurting herself to hurt Eso and Kechizu

"If I'm gonna die I'll keep on hammering Resonance into them" Nobara smiled insanely as she stabbed herself with another nail into her wrist affecting the blood brothers again