The main protagonist of the series Chrome Shelled Regios. In the novel, he is described as having tea coloured hairs and blue eyes. He was one of the twelve wielders of the Heaven Blades and also held the title of Wolfstein at the age of ten. After being exiled by Queen Alsheyra for participating in underground matches for money (though it was for the children at the orphanage)[1] he came to Zuellni as a Liberal Arts student with a Scholarship Rank D and no interest in joining the Military Arts. However, he was forced to join the Military Arts after Karian Loss, head of the student council, saw his combat potential, where his scholarship rank is A and so all his scolar fees are payed. Layfon has extremely high combat capabilities, as can be inferred from his past as a Heaven Blade. Due to his birthplace, Grendan, being heavily involved in fighting Filth Monsters, he and fighters there developed with a 'win or die' philosophy.

A typical highschooler with a charismatic and helpful nature, he lives with his Mother who has seperated from his Father due to marriage problems. Because if this seperation, Akiyuki is expected to take a prepared lunch to his father every morning. One day he wakes up late and rushes to deliver his father's.lunch, which ends up with him barely able to catch the schoolbus. He notices a white haired girl (Nazuna) at the back of the line and lacking the armband needed to actually get on the bus, so he obligingly gives it to her. As they arrive at the school, Nazuna presses a device and blows up the partially filled bus. In the light from the explosion, a strange light rises from the destruction and disperses into Akiyuki's arm, producing a strange blue gem-like object, however it's forgotten as Akiyuki notices Nazuna wounded on the bus. He rushes to help her, leading her to reveal that she was the bomber. She then presses Akiyuki's forehead, which materialises a red gem-like object, and she faints. Akiyuki's arm then transforms, covering his body in a strange white liquid and turning him into a white creature called Xam'd.