C782 The Calculation of Yellow Crane

After Tang Ao forced this violent spirit energy onto his finger, a blade light flashed at the place where Tang Ao's finger was and then, his finger was cut open. After that, Tang Ao used a drop of his blood essence to draw the Qi out of his body. When this violent wave of spirit energy followed a single drop of Tang Ao's blood essence into the air, Tang Ao threw out a fireball without hesitation