Voicevox Zundamon as a fashionable detective, based on a dress by the girls' fashion store Amavel.
On October 15th, 2024, Amavel posted a tweet of two dresses:
Vocaloid producer Fujiwara Hagane retweeted it with the comment that it was "Bishoujo Detective Zundamon and her assistant Kasane Teto".
Artists then obliged in portraying these two.