During their inquiry, they become imprisoned in the depths of the historical site. While looking for a way out, they stumble across a mystery girl who is eager for the assistance of a Shepherd to rescue the planet, which is on the verge of being swallowed by darkness. Despite Mikleo's caution about interacting with other humans, Sorey resolves to assist the stranger, inadvertently bringing him closer to his ideal of peaceful coexistence between man and Seraphim.