Shion makes his first appearance in
XI as a sub-boss. He was conceptually designed to be one of Ron's daughters
though developers decided to change his gender (maybe) to startle and appeal to
fans with his androgynous appearance.
Shion is an enigmatic character who's past
is unknown. He works as an underling for the demon Magaki
and seems knowledgeable about the workings of Orochi.
After being defeated at the ruins of the tournament finals, he is dragged
through an extra-dimensional gate and seemingly killed. However, after Magaki is
defeated at the end of the tournament, Shion's spear is hurled through a gate
Magaki created and goes through his chest, killing him instantly (supposedly).