Note: buru-dai was credited in the description of the video.

Also hoshimachi_suisei's pose seems to have been inspired from alexander_anderson as artist retweeted https://twitter.com/denfaminicogame/status/1745760268112863399 the same day, not sure if this should be tagged as the pose is slightly different.

Miko has the pose of Edogawa Conan in the 8th OP of the anime, and Raden has "I reject my humanity" pose. Fubuki's pose reminds me of Ace Attorney, though it doesn't look like the typical Objection of Phoenix Wright.