So happy to hear that. You made my day. I feel honored that they had a wonderful first experience with RPG games with Yokai Hunters Society.
About publishing the scenario. Depends on what's your goal: If you just have a simple doc you used for running the adventure, you can just post a link to your dropbox or google drive here in the comments section. I would love to check it out myself! If you have a well-polished and layout document that you would like to publish and sell or offer for free, I'm partial to itch, but you could publish it at DriveThruRPG also.
Here is the first draft of the scenario.
I would be glad if you could go throught it and tell me what do you think of it :D !