From the moment Ryua first walked into her rental apartment in Tokyo she believed it to be haunted.

"When I visited the place for a viewing there was a man standing there, glaring at me," she says.

"Since the estate agent couldn't see him, I realised he must be a ghost."

While someone more squeamish would probably have quickly left the flat never to return, Ryua chose to go ahead and move in.

"I'm a bit of a contrarian, so I decided I wanted to become friends with this glaring male ghost," adds Ryua, who works as an aidoru, a young entertainer, and who doesn't wish to share her surname.

Four years later, and still in the same apartment, she says she continues to experience paranormal activity on a daily basis. She says she hears endless footsteps and the ghost talking.

Although Japan has increasingly marked Halloween , external in recent years, many Japanese people take ghosts seriously all year round.…