I have taken Yuki the little newbie sprite to all of the capital cities and I have talked to each of the sprites there.
I used the soul crystal to return to Blue Bay but when I try to turn in the quest there is a weird sentence in red in the chat box saying as far as I can make out.
"The number of the Noisy Newbie effect that is does not match."

Yuki the newbie is at full health and right beside me so I don't understand why I can't turn in the quest.
Am I missing something here? Attached is a screen pic.
If anyone could help I would be grateful!

well in the SS you show, Yuki has return to alante and no longer in your buffs/ summon spot. You have to watch out whole time for yuki, I was cheap the whole time and used tele stones, but you just need to keep watch
"The number of the Noisy Newbie effect that is does not match." = you need Yuki as a summon to complete respective part of the quest.

Thanks for the info.
I hadn't realized that halfway through he stopped following me because I used my mount.
XD I knew that quest seemed a little too easy.

This is very helpful because I was having the same problem~ ^^
But, how do you start the quest over and get Yuuki to follow you again? When I talk to Atlante he won't let me start over. It just keeps displaying the "Noisy Newbie Effect" Message. All help is appreciated. <3

Abort the quest then accept it again.
Adventure Log -> Quests -> L15 quest -> Abort

Oh, okay, thank you!

Be sure to protect him. Apparently he is annoying enough that the monsters hate him too. XD They will kill him if you don't watch out.