If you can't find restroom, I recommend going to the nearest subway station ;)

When you are going abroad, one of the most important things is restroom. 

Of course, me too.

So I'm going to talk about the restroom today. 

You don't have to worry about it!

First, find the nearest subway station!

Every station in Seoul have restroom.

There are very ..? um.... generally clean and have toilet paper.

Even though you have not subway ticket, you can use restroom free. 

It is important. Free!! 

Second, find the nearest shopping mall!

If there are more than two shops, the restroom is usually inside the building.

There are clean, but sometimes there is no toilet paper.

Be careful....

Oh, there is also a big supermarket like E-Mart, Home plus, Costco.

Third, find the nearest cafe or restaurant!

Usually, they use the key.

you should ask where the key is. Then may be they will lend the key.

you must return it after you use it!

finally, if you can't stand it any longer, enter a anywhere you see right now and ask.

Most of person will help you.

Even though the restroom where they guided sometimes is dirty, you are not in a position to choose. haha.

I hope you enjoy Seoul trip.