BUR #4209 has been approved by @evazion.
mass update takeuchi_mariya -> sweetest_music
mass update takeuchi_mariya_(cosplay) -> -takeuchi_mariya_(cosplay) -takeuchi_mariya -real_life
The current usage of the tag "Takeuchi_Mariya_(cosplay)" looks strange. All posts with it (and actually, all posts with "Takeuchi_Mariya") are redraws of the cover of her single "SWEETEST MUSIC".
Like "RIDE ON TIME" and "Bohemian Rhapsody", we should tag them by that single name, and remove the tag "Takeuchi Mariya" if other characters are drawn instead of her.