Heavily based off of @Crionics style,

This is LightChaser The umbreon and her father Poy'Plesano
pronounce-[p-oe ple-s-an-yo]
a shiny old leafeon.They travel on the run from the murderer of Light's mom,who is also targeting whats left of the family.But her father lost all memory so he has to trust in this strange umbreon to help.