Dark bounty hunter.-DanMachi FF

In a world full of gods and powerful beings. One god, he was particularly disliked. The gods feared and hated him. Because he was more powerful and brutal than them. That god was Hades. The strongest of the big three to be deceived. And lowered to the rulership of hell, which he never left until a certain point, when a certain woman was strong enough. That she had managed to emerge from the River Styx. And wander through the underground dawn alone ...

A few years later, a boy was born from their relationship. This boy, as might be expected, was a demigod.Dante