Genre: Mystery

Stories spread about something preying on children who are all alone, and the gang gets scared. Especially since their parents will be out for the night! A deadly ghost with a sickle in hand stalks Satsuki and her friends. Can the gang survive the night?

The gang helps Keiichiro train for a sports festival at school. A mysterious boy shows up at the track, running alongside Keiichiro. Despite the bonding between the two, it seems the new boy isn't quite alive–and he's got a penchant for cutting off the feet of those who run!

While in the old schoolhouse, Satsuki hears a haunting melody drifting through the halls. The only trouble is the lack of a pianist! It seems that if Satsuki hears the melody a total of four times, she'll die. The gang saddles up to put the ghostly piano to sleep.