One day, Usagi Tsukino, clumsy 2nd-year middle school student, stumbles upon a talking cat named Luna. Luna tells her that she is destined to be Sailor Moon, "champion of love and justice", and she must search for the fabled Moon Princess. Usagi finds friends that turn out to be destined senshi as well, and together they fight to save the world from the certain doom brought upon by the Dark Kingdom.

Usagi Tsukino is chosen to be a guardian of justice and is sent on a quest to locate a Silver Crystal before the Dark Kingdom invades the Earth.

Usagi Tsukino is a clumsy teenage girl who becomes a Magical Girl named Sailor Moon after meeting a cat named Luna, who tells her she is a destined warrior who must find the reincarnated princess of a lost kingdom. Along the way, she meets other reincarnated warriors who join her group known as the Sailor Senshi who fight the forces of the evil mastermind behind the Dark Kingdom.