yumizuka satsuki (ultimate satsuki)
Yumizuka Satsuki's appearance as a gold heroine from Rojiura Satsuki: Chapter Heroine Sanctuary. Her design is a reference to Ultimate Madoka.
Not to be confused with her appearance as a Bronze heroine in the same story (which uses her main tag).
This tag implicates yumizuka_satsuki (learn more).