The Nanasen created by the steel wires.

"... I’ll be really insulted if you think that this is my full power."

Kanzaki moved her lips, and the seven strikes seem to be correcting Kanzaki’s sword trajectory as they assaulted Acqua from all angles. Acqua quickly increased his attack rate in response. Using his mace to block, turning his head to avoid, in front of Acqua, who continued to manipulate the sword and the wires—suddenly, a strong red flame surrounded him.

"——Eh?"

The steel wires scattered in the air became a three-dimensional magic array. The moment Acqua realized this, the lotus flames swallowed his entire body. A second explosion followed, then a third, then finally a slash from a blade basked in moonlight. The sounds of continuous attacks could not be heard. It was happening too fast; the sounds had become indistinguishable. The deafening noises that had been delayed for a few moments felt like a giant fist ready to rip the air apart.

But Acqua was not there.

Moving away from the direction Kanzaki was looking, Acqua flew to the concrete floor ten meters in front of him.

A cut was on his face. Maybe he had cut by the steel wires; it was a small cut, after all.

Toaru Majutsu no Index vol.16