Complex sentence: It is the year 3000 AD and Airishuu Izaya Luke is a Catholic priest of the Cult of Saint Ruka and is charged with watching over Kyou, the leader of a group of murderers called Madness.
Split into simpler sentences: It is the year 3000 AD and Airishuu Izaya Luke is a Catholic priest of the Cult of Saint Ruka. He was charged with watching over Kyou, the leader of a group of murderers called Madness.