ive been search thru this forum..but none of those threads answered my question.

i purchased a pet from that gambling machine.

and i summon it...
does it someday evolve to a red dragon?
coz i saw it on the korean page ...
my pet is yellow egg thing...
do i have to give it some specials items?(except the rings?)

No, never.And this has been answered many times so far.

one of the first questions asked when someone new to the game joins my guild is usually about if the pets can evolve lol.