After the defeat of the Shadow King, Yuna and Kaito returned to the human world as heroes. News of their victory spread like wildfire, and they were hailed as saviors of the spirit realm.
However, the celebration was short-lived as the ruling empire, fearful of the growing power of the rebels, declared war on the spirit realm. Yuna and Kaito knew they had to act fast to prevent a full-blown war between the humans and the spirits.
Together, they met with the leaders of both sides and negotiated a peace treaty, bringing an end to the conflict. As the treaty was signed, Yuna couldn't help but feel a sense of pride and accomplishment. She had come a long way from the timid girl who had been chosen as the Last Spirit Guardian.
After the peace treaty was signed, Yuna and Kaito decided to return to the spirit village to continue their training and protect the spirit realm from any future threats. They knew that their journey was far from over, but they were ready for whatever challenges lay ahead.
As they stood together, looking out at the shining spirit realm, Yuna knew that she had found her true purpose in life. She was the Last Spirit Guardian, and she would do whatever it took to protect the balance and bring peace to both worlds.