I have been to Kaesong in North Korea.

I used to live in Kaesong.

He always acts according to his own maxim.

This eggshell is very thin, isn't it?

My new kaku obi perfectly complements traditional Japanese attire.

Nuclear reactions are used for mass production of energy.

I love fighting games.

I commute using a train that stops at every station.

Because his sense of pain is dull, he doesn't notice right away when he gets injured.

A round angle is 360 degrees.