I saw an article saying that if you have a tattoo cover, APA Hotel will put it in, so when I consulted with the service staff, they brought the tattoo cover to the room and put it in the public bath! The number seems to be limited, so I think it's better to bring it with you. The staff who brought the tattoo cover to the room also asked me to "please enjoy the bath" and put it in comfortably (* ´ω ｀ *)