One day, Numbuh 5 was helping Princess Celestia reorganize her library. "This is really quite the help, Numbuh 5," said Princess Celestia, "Twilight would usually come and help, but she's so busy in her own, and nobody else got the chance to lend a hand." "It's no problem; Numbuh 5's team has a library in the treehouse, and the team constantly puts Numbuh 5 on organization duty," the human girl explained. Celestia let out a slight chuckle. As Numbuh 5 continued looking for any out-of-place books, she came across one of this title: The creature was known as "Discord". "Numbuh 5?" "Yeah Numbuh 2?"