Well the DLC was a bit underwhelming (imo). Instead of bonus scenes all over the place it would've been cooler to have a new map where everything happens in some sort of mini-story. Now you're just flying around trying to get all the little scenes, and the last Leo scene is bugged out and doesn't work in the study room.
That being said, the DLC developer room revealed that the dev plans to work on "many more games" together with the girl doing all the translation stuff an other things. Really fantastic, looking forward!
Huh? The Leo scene isn't bugged, it's just kinda hard to understand how to obtain
You need to clear all scenes with
Flare first (the last character in the yariman dex), after that, you can remove the cheated yarimon from your team in front of the Central Tower by interacting with the blue and yellow flame
Once you've done that, you can do the Leo event
I do agree tho, I would've preferred an actual "main quest" for the DLC, but to be fair, there isn't much to explain in the story, most if not all questions are already answered