The KNY Shimeji for Kimetsu no Yaiba fans app allows you to create your own customized shimeji for the anime/manga Kimetsu no Yaiba. You can choose from a plethora of shimeji to add to your screen. It's super easy to use, and you can even use it to create personalized screen savers.

To create your own shimeji, simply open the app, tap the "Add" button, and tap on your favorite shimeji. Once you've done these steps, you will see the animated sticker on your phone screen.