Leaving the North continent

After got blown away by Exdeath's barrier, you land on the North continent.
To find the way out, you have to walk a long-long way all the way to the east part of the world, (on the way there's a village).
Go further South, and East, and at the end you'll find a small valley with a block of forest inside. As you get into the forest, you
find a Moogle! which get extremely scared by your appearance. (...)
Anyway, that moogle will escape through a underground path, and you just follows.
Make sure you restore some strength and buy something new in the village on the midway! The Kuza castle however is not
related to the story just yet. It's only a date spot for now.

Stuck in Hiryuu Valley cave

In Hiryuu's (or Flying Dragon's) Valley there's a cave where you can see a switch and a hidden door, but you can't reach the
switch. Maybe you also know that there's a hole, but you don't see it...
Now, if you just want a Hint and find the answer yourself, then read this map. Some pirates gave me this a while ago... (I
was kidding!)
Or, if you really just want the Answer, use this image instead. The location of hole is perfectly indicated, and
you just have to walk onto it.

Entering Barrier Tower

Everything goes like a story...

As the shameless Exdeath use his four Barrier towers to block your attack, you get pissed off but don't know where to go...
And one day, while you're still pacing around the towers, you thought, why don't I just take my dragon for a ride and leave this
shit alone? That'll upset him as well.
So, riding your dragon, (it takes some time to persuade Butz...) you discovered some new sights around the South-East shore
of Exdeath's land: A fleet of ships!
Curious like a cat, you determined to get down and see what's going on. It'd be pretty nice if you can actually land the dragon
onto the ships, so you chose the one at the center and gave a try...
...and you discovered King Zeza there, thinking about the ways of getting into the Towers himself. And you just suddenly
remembered that in Sergate castle, all the soldiers told you Zeza has lead his fleet to attack Exdeath. Wondering why you didn't
remember that piece of story, you approached Zeza anyway...

Anyway! If you are supposed to get to Barrier Tower, you have to first discuss about it with King Zeza, and then have some
rest yourself. The method will be automatically unfold by itself. IF you don't find the fleets yet, that means you're not supposed
to think about the castle yet.