Gegege no Kitarou (1968) EP10 - The Great Youkai War (Part 1)

In London, patrolling officers notices a strange glow coming out of the old abandoned cathedral. After getting backup, the police storm the cathedral in search of the hooligans that broke in. Instead a large round youkai with one eye appears and hypnotizes them all. News of this incident reaches its way to Japan. Meanwhile, the people in London had decided to demolish the cathedral. Medama-Oyaji is worried about this, telling Kitarou that the Western Youkai have always loved holding their parties in that cathedral, and that there is no way they will take this lying down. Sure enough the Yōkai in London are planning their attack on the humans, but Backbeard dismisses it. One small attack wouldn't be enough and tired of living in such cramped places surrounded by humans, he suggest that they moved to Japan, and remove all the humans there, as the first step of creating a kingdom for only youkai on the island.