It's Calyrex

At that moment Adva finally was able to witness who was the owner of the voice that called her into this weird and crazy world, it was some sort of bipedal deer man with some plants decorating his body.

(reference: https://static1.e621.net/data/ae/bf/aebfd9dabd241ed41f0dc1fdd3d09b39.png )

At that point she wasn't surprised that he was an anthro animal or that he had his balls hanging out free, but after watching how big the member of the pokemon it town were, she was a bit taken back that this mysterious mystical creature in particular had just a small penis.

"Um... you're kinda cute" she said trying to compliment him but since she was looking down at his mini cock as she did so, he just felt insulted as he could tell what she meant.

"I'm a grower, not a shower ok" he said blushing slightly, he seems concious about his small member like males back on her world was.

"Is fine, is not the size of the hammer and all that..." She kept trying to reasure him.

"I don't want your pity" he said turning around feeling more ashamed the most she tried to make him feel better.

"Ok ok, we can just forget about that, can I ask you for your name?" Adva asked trying to change the subject.

"Y-yeah right, I'm Calirex, I'm an ancient king and a legendary pokemon, I'm part grass type and part psychic type" he said, trying to look regal as he summoned a throne made of flowers to sit on.

"Wow that's cool, I would probably be nice to sleep on that" Adva said thinking it may be an upgrade from the pile of hay.

"Sorry Adva but you can't take anything from the dream world to the real world" Califrex informed her, then a small shake was felt around the void.

"What's that? it feels like it's shaking but I'm floating at the moment" Adva said as she tought it may be some kind of earthquake.

"That's you waking up, good luck Adva, we should encounter each other again in your next dream" Califrex let her know as her eyes opened up, taking her back to the waking world.