Kamen Rider Lethe: Epitaph of the Forsaken

When a solar flare unveils Antarctica's hidden mountains, humanity awakens something that should have stayed buried. Fifty-one years after the first expedition unleashed an immortal deity from a lost civilization, Narukami Watari returns to the frozen wastes with his grandfather—only to confront a destiny forged 66 million years ago. Armed with the primordial stone Lethe, he becomes humanity's last hope against the Forsaken. No game systems. No second chances. Just raw despair and the brutal truth of what it means to be a knight in a world racing toward extinction.