Apocalyptic World: I've Got The Second System

Seventeen-year-old Seth's mundane existence takes an astonishing twist when he hears a divine proclamation from God. The world teeters on the edge of an apocalyptic event, but instead of the typical chaos and destruction, God transforms it into a challenge. A challenge where every human receives a unique system and concealed abilities, all in the name of survival. "Shit! What should I do?" I could hardly hear my own voice as I faced imminent death. In the midst of the darkness, a woman's voice taunted me. "What an intriguing human, on the verge of death, aren't you?" Yes, I am! Please, stop talking and let me pass in peace. "How about I offer you a chance? You need to help me escape, and I believe you're the only one who can." How could I possibly do that? "Yes, yes, just form a pact with me. I'll grant you the victory you desire most, and in return, I'll gain my freedom. But it won't be without a cost. I'll bestow upon you the Ouroboros curse." Are you seriously presenting me with this choice while I'm on the brink of death? Ugh, do I even have a choice? As I resolved to accept, I heard a voice. [Downloading the new system] [100% success] [The new system connects to the server] [100% success] [Incognito mode: activated] [Welcome to the second system, Tiamat] Huh!? I have two systems now!?