Star☆Twinkle Precure - Season 1 Episode 5 A Secret Transformation: The Lady is Cure Selene!
Overview: Madoka ends up discovering Fuwa and becomes conflicted over whether she should report her to her father Fuyuki, who is chief of the Diet's Space Research Special Task Force. As Hikaru and the others try to convince Madoka to stay quiet, they come across Tenjou, who attacks with overwhelming numbers of Notreys. Prioritising her own feelings over her father's wishes, Madoka strives to protect Fuwa and gains the power to become Cure Selene. After beating back Tenjou, Madoka keeps everyone's identity a secret from Fuyuki and vows to fight as a Precure.