A colossal, ancient titan, shimmering with celestial energy and clad in obsidian armor etched with glowing runes, erupts from a crumbling subterranean temple, sending seismic shockwaves across a mist-shrouded, primordial landscape under a stormy, starless sky, rendered in the distinctive Kaoru Yamada style with its characteristic dynamic linework and desaturated, high-contrast palette.