You... Confessed??
Rina and Asuka Jr. make a deal: If Meimi is Saint Tail, Asuka Jr. must be Rina's boyfriend. If not, Rina will stop following Meimi around.
Aired 07/12/1995EP 10 - You... Confessed??

1995
Mysterious Thief Saint Tail
Meimi Haneoka, 14, is a normal girl during the daytime, but during the night, she assumes the "position" of Saint Tail, a modern-day Robin Hood who steals from thieves and gives items back to their original owners. She is aided by her friend, Seira Mimori, a nun-in-training, and she is chased by her classmate (and soon-to-be love interest), Daiki Asuka (often called "Asuka Jr.").
(Source: Anime News Network)