There are many manga about taboo relationships that can be referred to the following popular types: 1. Romance Comics: These comics usually describe the interesting things and contradictions that happen between two people with different personalities and backgrounds. Sometimes, there are some exaggerated plots that make the audience feel sweet love. 2. Horror comics: These comics usually express feelings of depression and fear by depicting horror and horror scenes and plots. Forbidden relationships were also a common theme in horror comics such as The Grudge and Death Note. 3. Science fiction comics: These comics usually combine forbidden relationships with stories from the future or alien worlds to describe the relationship between humans and unknown creatures or civilizations. For example," Galaxy Railman " and " Alien ".