If you are a fan of the Anime Kimetsu no Yaiba and want to learn how to draw its characters, then the "How to Draw Demon Slayer" app by FineArt is a great choice. This free app is available on Android and provides step-by-step tutorials to help you improve your drawing skills.

The app offers a wide variety of characters to choose from, ranging from the easy to the most difficult levels. You can practice sketching and coloring, and with continuous practice, you can master the art of drawing. The tutorials are easy to follow and provide clear instructions, making it suitable for beginners and experienced artists alike.

It is important to note that the app mentions that the content is supposed to be public and that no copyright infringement is intended. However, if you feel that you have the rights to any content, you can contact the developer to have it removed.