Five years have passed since Rio enrolled in the Royal Academy. The graduation examination, the outdoor practicum, is quickly approaching. Celia listens with mixed feelings as Rio talks of his plans to go to his parents' homeland, the Yagumo region, after he graduates. On the day of the outdoor practicum, Stewart, wounded in a monster attack, knocks Princess Flora off a cliff. Rio dives for her without thinking, throws Flora back up to safety midair, and falls some thirty meters to the foot of the cliff...!

Having once again firmed his resolve to avenge his mother, Rio tells Yuba that he intends to return to the Strahl region. But prior to that journey, he passes peaceful, happy days in the village, keeping his royal heritage a secret from everyone but his cousin Ruri. Spring arrives, and after learning of Rio's eventual departure, Sayo returns home and collapses in tears. When her older brother Shin sees her like that, he can't just sit still. He goes to beg Rio to stay in the village, but...