The boy and girl left Nagakushi with one purpose: save the elderly couple whose souls were taken by oni serving an evil dragon. Part 2 follows their journey as the path deepens and the stakes clarify. The dragon remains the destination. The oni blocking the route are the immediate challenge. And the question the two children have been carrying since the beginning — why they arrived in a mountain village as infants, entrusted to a childless couple by a prophecy — draws closer to an answer with every step. Their origin was not accidental, and understanding it changes what they are actually trying to accomplish.