Tails has basically enough of being all the time treated like an little kid by sonic and the others.

He is stuck inbetween the shiny espeon and an eevee evolution.you are his trainer and didnt let him evolve and you just wanted him to go(it's from pokemon).

She came from another world or dimension where she fled out of an laboratory where she was tested on,her DNA changes to the one from the other person,animal or whatever there is,she is now in the pokemon world for 6 months and has an family.