When a human from this world enters the Eqeustrian world from behind the door, things get a bit mixed up.

Someone in the past messed up a man's future. Now, it's up to him to regain the lost reputation and maybe even save the whole Equestria from danger.

Rainbow Dash is in love with Applejack; Applejack is in love with Rainbow Dash. What if their love turned into hatred?