Osaka Naru

From Pretty Guardian Sailor Moon Wiki

Key Points

Naru is Usagi's best friend. She's a very happy, outgoing person, and her mother (Osaka Mayumi) is a jewelry designer with her own shop.

Naru grew jealous of Ami's relationship with Usagi, but the two girls eventually realized they were jealous of each and resolved their differences.

Naru learned of Usagi's other identity after youma attacked the daycare center where Usagi, Ami, Makoto and Naru were doing volunteer work. Naru was injured when Usagi transformed into Serenity, but she forgave Usagi.

Naru also had her own experience being a "senshi" back when Sailor V first appeared on the scene. Usagi, Naru and their friends Momoko and Kanami dressed up as their own unique senshi to protect Naru's mother's jewelry shop. They failed miserably, and Usagi got captured by the jewel thieves, but it turned out alright in the end.