After spoiled city girl Sloane Emerson gets in trouble yet again, her wealthy parents send her off to the country. There, the rebellious teen ends up forming a bond with the last thing in the world she would've thought - a horse.

Decades later, a son of a killer falls in love with a girl, whose family's horrifying murder he saw in childhood.

An inquisitive girl and her father must unravel the secrets of Echoville Manor which has held the world's cutest spirit Ghoster captive for 50 years, before Yuto the ghost dragon wipes them all out in his quest for immortality.