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)

Animated adaptation of Wuliao Kan Kan Tian's (无聊看看天) novel titled Yingxiong? Wo Zao Jiu Bu Dang Le (英雄？我早就不当了).