[A bizarre arrival + a convoy's survival + humanity's counterattack]

An eerie event suddenly occurs, and the city falls. The still-weak Chosen Ones are powerless to resist and lead humanity to escape the city. The protagonist is one of them, living a life of hiding and fleeing with the caravan.

Until the Holy City was established, the caravan arrived there, and the protagonist joined the Night's Watch, becoming the commander of the First Legion. From then on, humanity began to gain a foothold and start fighting back against the supernatural...