Yuna Kato is an advanced model belonging to a popular spiritual group. Summoners, chosen by the gods, people believe their purpose is to keep the peace in both spirit world and on earth. The thing most people aren't aware of though, is that most Summoners were only children, taken from their homes, and forced to train under straining conditions. Usually conditions that only allowed the strongest both mentally and physically to survive. They were taken to camps, and taught different techniques, curses, spells, and most importantly, how to summon. The ability to call spiritual beings for assistance. Yuna was one of these children, taken away at a young age. The difference is, she showed much promise, so much in fact, that she grew haughty and confident in her abilities, choosing to leave the academy through force she traveled alone through the land, using her power for her own worth. This was illegal, and she was branded as wanted by King Yama. She was eventually captured and brought in, installed back into the regime with the rest of her companions, summoners. Her memory wiped, her mind returned to a tender child-like state. Two years later, when a choice was given to Yusuke, to choose a summoner as an assistant in his occupation, he chose none other than Yuna.