From the virtual idol agency we all know and love, Hololive released a short animation skit every weekend starring their JP talents. Most of the time, the episodes jammed so much content, dialogue, and pop-culture references which makes it so convoluted and so so bad that its good, at least that's what I thought.
Here's episode one that's filled with recaps of non-existent episodes.
https://www.youtube.com/watch?v=UVncAW3h45EBut every once in a while, they also threw some mystery-genre episodes with an actual plot and I think its kinda satisfying to replay the episode and find the clues leading up to the reveal at the end. Here's one of them.
https://www.youtube.com/watch?v=_GlqT6O0UVo