The Cupid Quest

After Saranda's attack on Kolton, return to Burgusstadt and speak to Rookie Soldier, who is patrolling the castle. He wants you to give a ring to a special soldier he has an eye for. The only clue he gives is that she is guarding the restricted section. She is the one standing next to "bored guarding soldier" near the library. Give her the ring, then return to Rookie Soldier to receive blue berry and blue berry powder in return.