Such a comic is definitely not something positive or acceptable. It's likely filled with unethical and potentially harmful material related to family in an inappropriate way.
One example could be stories about family secrets regarding illegal activities in the past, like smuggling. Another might be tales of hidden family feuds that were so intense they were not supposed to be talked about. For instance, a feud over inheritance that led to estrangement and was kept quiet to preserve the family's image.
In some cases, forbidden family stories can cause division. If some family members want to keep the story hidden while others think it should be revealed, it can lead to arguments. Also, if the story is something that shames the family, like a relative's criminal past, it can make family members feel embarrassed or defensive when they do learn about it. This can create a rift between those who are more accepting of the past and those who are not.
Taboos can sometimes create a sense of mystery within the family. Younger family members might be curious about the things they are not supposed to know. If not handled properly, this curiosity can turn into resentment towards the older family members who enforce the taboos. For instance, if there is a taboo about an old family feud and the younger generation is not allowed to ask about it, they might feel left out and frustrated, which can ultimately harm the family relationships.
Such stories are extremely inappropriate and unethical. In society, they go against moral and ethical norms. They can cause great harm to family relationships and the psychological well - being of family members. It can lead to the breakdown of family structures and damage the trust and harmony within a family.