Raging Hell

What was Myriad Cero Flash?

It was exactly what it sounded like: ten thousand Gillian firing Ceros at once, their blasts merging into one.

In past wars, the combined Cero unleashed by a hundred Gillian had already been immensely powerful.

Yet to pull off such a combined Cero required putting those hundred Menos through extensive training over a long period of time, making it extraordinarily difficult.

Having more than ten thousand Gillian unleash a combined Cero together was far more difficult than simply multiplying the challenge of a hundred Gillian by another hundred.

Over ten years, after prolonged drills in the various palaces of Hueco Mundo, only four groups had succeeded...