Mega Man Maverick Hunter X: The Day of Σ

The year is 21XX. Reploids are commonplace now, after Dr. Cain rediscovered Dr. Light's old lab and based several designs off of Dr. Light's original, called "Mega Man X". X, meanwhile, has joined the Maverick Hunters, and works with unit leader Zero under the command of Commander Sigma. It is their job to terminate reploids who have become violent.

Mushi-Shi: The Shadow That Devours the Sun

A strange shadow forms blocking the sun from a village following a solar eclipse. Ginko enlists the help of the villagers to solve the mystery of the shadow before it destroys their crops.

Mega Man X: The Day of Sigma

In a prequel to Mega Man Maverick Hunter X, the Maverick Hunters led by X and Zero, under the command of Sigma, face reploids who have become violent.