Orc with Child

Seven years have passed since the all-out war between humans and demons. In a peaceful village, three elf siblings live a quiet life, until one day, a surviving member of the demon race, an orc, suddenly appears before them! Tension erupts as the middle sister, Alicia, an adventurer, draws her sword. But the orc is holding a human girl in his arms... Though they are supposed to be enemies, the orc pleads with the elves, saying: "Please... save this child!" What is the orc's true motive, and why is he protecting a human child...?