The legendary relics, the remnants of ancient technology, the sunken castle, the fruits of knowledge, the Tree of Life, the Holy King, the Demon King, the Paragon, the tower to the firmament, the ladder to the cosmos, the descent into Hell, marriage, birth, death, and rebirth... These all befall a simple fisherman's son as he comes of age. Called by an unknown force, he leaves his village in pursuit of the Demon