Secret police in Russia catch a man from Japan. The man works as a reporter for a paper. His name is Imai Yuki. The police catch him on an island. The island has the name Sachalin.
Russia says the man is a spy. He looks for news about the army. He asks about soldiers from islands. The soldiers fight in a war against Ukraine.
A court puts the man in jail. He stays there for 2 months. Japan and Russia fight for a long time. They have no peace deal.