Cardfight!! Vanguard (TV)

In episode 3, there are posters of the Pokemon Trading Card Game and Air (the anime series from Kyoto Animation) in the background. Furthermore, the Air poster has cards resembling those of the Yu-Gi-Oh! Trading Card Game on them.

In episode 13, around 16:27 into the episode, cameos of Cordelia Glauca, Nero Yuzurisaki, Hercule Barton and Sherlock Shellingford from Tantei Opera Milky Holmes can be seen walking outside the card game shop, Card Capital.

In episode 14, at 4:33 into the episode, Cordelia Glauca, Nero Yuzurisaki, Hercule Barton and Sherlock Shellingford from Tantei Opera Milky Holmes can be seen walking next to Kamui Katsuragi and Aichi Sendo on the bridge.

In episode 15, at the end of the episode right before the ed song, cameos of Cordelia Glauca, Nero Yuzurisaki, Hercule Barton and Sherlock Shellingford from Tantei Opera Milky Holmes can be seen standing right outside of Card Capital

In episode 20, around 6:40 minutes into the episode, Sherlock Shellingford from Tantei Opera Milky Holmes can be seen watching the card battle between Kai Toshiki and Kaoru Komatsubara

In episode 25, around 6:40 minutes into the episode, Hercule Barton from Tantei Opera Milky Holmes can be seen outside Card Capital, most probably talking through her phone.

In episode 36, around 22:08 into the episode, Cordelia Glauca and Hercule Barton from Tantei Opera Milky Holmes can be seen walking outside of Card Capital

In episode 41, Cordelia Glauca and Nero Yuzurizaki can be seen in the background around 10:07 into the episode in their school uniform.

In episode 45, around 20:21 to the episode. Cordelia Glauca from Tantei Opera Milky Holmes can be seen behind Ultra Rare goods stand, working part-time.

In episode 46, at 7:20 into the episode where Katsumi was confronting Miwa, Cordelia Glauca from Tantei Opera Milky Holmes can be seen at the back at the front row seats.

In episode 59, at 10 minutes into the episode, the back of Yuzurizaki Nero can be seen standing in front of Ultra Rare goods shop.

In episode 65, at 20:55 into the episode, Yuzurizaki Nero, Sherlock Shellingford, Hercule Barton and Cordelia Glauca can be seen standing behind Sendou Aichi in the distance, watching him run.