Zero was mankind’s first real superhero. Under his watch, countless other superheros appeared and followed in his footsteps. However, after 5 years of war, Zero disappeared without a trace. (Source: zeroscans)
Anix is the best site to watch Hero Return
SUB online, or you can even watch Hero Return
DUB in HD quality. You can also find Green Monster Team
, BigFireBird Animation
anime on Anix website.