Immediately afterwards, Ollerus suddenly ended his side of the eternally even exchange of explosions. The eyepatch-wearing girl’s great number of attacks approached with the force of surging waves. Ollerus did not defend or evade. He instead stepped into the deluge of explosions himself.
His bones could be heard shattering and his flesh could be heard bursting.

An arm flew off, but Ollerus’s expression did not change even slightly.

Toaru Majutsu no Index New Testament vol.8 epilogue