A vague introduction to the anime. There's also a 2-episode prequel here, so if you want to make things clearer, you should watch those first before diving into the first episode of this anime. An introduction like this gives a little bit of mystery and makes you hope that they will eventually give answers to the questions they're making. Anyway, getting greeted with a bat and having to dodge it is a hilarious way to start the anime, lol 🤣.