Okay, so a gravure idol is kind of like a model, but instead of just posing for pictures, they also do videos that are a little bit more grown up. They wear cute clothes and have pretty hair and makeup, but they might show more skin than you're used to seeing on TV or in movies.
Gravure idols are really popular in Japan, where people like to see them in magazines and on TV shows. They often have cute and bubbly personalities that make people want to watch them.
But it's important to remember that gravure idols are still people, just like you and me. They have feelings and families and dreams, and it's not okay to treat them badly just because they show a little more skin than other people. We should always be kind and respectful to everyone, no matter who they are or what they do.