Suppressing the Evil Clan, Thousands Accuse, the Demon Clan Descends, Why Are You Crying?

A thousand years ago.I was the strongest genius of the entire North Star Immortal Realm.To suppress the Evil Clan, I sacrificed myself to the grand array.A thousand years later.I have returned alive.But they say... this world only needs a dead hero.It doesn't need a living genius?Hmph, if this world doesn't need me.Then what is the use of me staying in this world?