It is not difficult to decorate your bedroom in a martial arts style. The following methods may help you.
1. Check the information on the Internet, then look for what the martial arts exhibition hall looks like, and then decorate the bedroom according to their style.
2. Most of the dormitories have white walls. You can put some posters of your favorite martial arts characters on the walls.
3. Change your daily necessities into martial arts style, such as water cups into kettles, flip-flops into wooden shoes, etc.