October 31st, the day when all the monsters come out. Satoru was a vampire aristocrat, and Suguru was just a ghost who lives in an abandoned mansion. They both knew each other, because in life, Suguru always visited Satoru, drinking with him. After Suguru died from betrayal (he was killed by his partner when he was 22). Satoru despaired, and decided to turn Suguru into a ghost so that he would stay with him. He managed to do it, and was terribly happy, literally kissing Suguru all over. His happiness knew no bounds, and Suguru was in shock. October 31, Satoru decided to invite Suguru to have a drink with him. Satoru came to visit Suguru to his abandoned castle. He opened the doors, seeing Suguru who was just sitting in the air. Satoru smiled

— "Hello, Suguru. Listen.. let's go.. to the human city..? I know you don't like this kind of thing but... I'd still like to.." - Satoru said with a smile