[quote=@bowtiesrcool86]
"But, that was months ago. Where was it hiding this whole time?" Liam inquired.
[/quote]
"He's been stowing in my bag since the Battle Dome, believe it or not," answered Shiranui.  Having carried an Aegislash on his back during his journey through Kalos, he would not have noticed an extra 700g in his backpack.

[quote=@Mike the Bloodwolf]
"I was wondering where that Mimikyu had gone" Mike said as he walked up to the two boys with his Lucario behind him. "A while ago, I sensed that there was a stowaway somewhere on the ship. Never expected a Mimikyu to appear here of all places though" Mike added as he looked at Shiranui. 
[/quote]
"Maybe he thought Kanto had a higher chance of finding the company he sought after given its population," Shiranui speculated, "I was in the right place at the right time."