In the anime:
Rini turns into Wicked Lady because Wise Man tricks her into believing she is unloved and combines his magic with that to turn her into Wicked Lady.
In the manga:
Wise Man simply uses his magic to brainwash her to finally make her an adult so she can be with Darian.
Rini transforms into Wicked Lady in episode 78.
Rini is a character from Sailor Moon, the daughter of Serena and Darien. Rini first appears as an older version of herself, or Wicked Lady, in episode 78.
Rini does not betray the sailors but she is hypnotized by the wisedman. She is turned int the wicked lady, also known as black lady, and she was made into an evil sailor where she was asked to kill sailormoon but the good in her came out to sailormoon and she was switched back.
Black Lady, known as Wicked Lady in the English dub, first appeared in episode 85 (78 in the English dub). She is Chibiusa (Rini) infused with the powers of the Evil Black Crystal courtesy of Wiseman, and aged to a teenager/young adult.
The duration of The Wicked Lady is 1.73 hours.
English Episode 81
The Wicked Lady - album - was created in 1982.
The Wicked Lady was created on 1945-11-15.
In the manga, Rini/Chibiusa becomes Sailor Chibi Moon in Act 23 (25 in the reprint) shortly after Sailor Pluto dies. Until this point, Chibiusa was Black Lady (Wicked Lady) but seeing her friend die to save her life, causes her to break through the black magic. In the anime, Rini/Chibiusa becomes Sailor Chibi Moon in episode 103, The small Pretty Soldier came. (Cloverway: 96 Hello, Sailor Mini Moon) She is sent as a Sailor Senshi to the 20th century by Neo Queen Serenity.
Rini turns into a teenager and Serena turns into a kid in episode 158, season 4. In this episode Serena wants to be a kid and Rini wants to be an adult so they get switched places. :)
Lady Tremaine
The Wicked Lady - 1945 is rated/received certificates of: Finland:K-16 UK:PG UK:A (original rating)