A Promise Kept! Bye-Bye! Kendo Girl!
When Ran and Kendo Club member Shiori have to do a makeup class, they decide to hang out in Shibuya afterwards. But all Shiori wants is to dress like a girl, and Gal extraordinaire Ran is there to help. Source: crunchyroll
Aired 17/06/2001EP 12 - A Promise Kept! Bye-Bye! Kendo Girl!

Super GALS
Sporting designer clothes, make-up, and nails, Ran Kotobuki is the very picture of a trendy, young Shibuya girl, but don't let that fool you. This girl comes from a family of cops, and she’s ready to lay you out flat if you even think about causing trouble in her town! At least, she will... when she’s not distracted with karaoke, shopping, and dodging her homework. Join Ran and her friends as they defend the streets of Shibuya and attempt to shop their way into the history books as the most famous Gals ever!
(Source: RightStuf)