Sea of Clouds Tail Fin Okayama Airport mt store mini at Okayama Airport Complete sets are also on sale. Sea of Clouds was popular and sold out many times during the event. Complete sets sold out about 4 or 5 days before the end of the event. Purchased at the event. The products are not individually packaged. Please refrain from purchasing if you are concerned about this. limited edition mt Sea of Clouds mt Tail Fin mt Okayama Airport