It's hard to say exactly. It could suggest that something has the potential or is likely to be presented as a manhwa, but without more context, it's quite ambiguous.
I don't think it's a true story. Usually, when something is labeled as such, it's more in the realm of fiction, crafted to captivate and take us on an imaginative journey.
It varies. There are comics that deal with adult issues and are intended for mature readers. However, there are also plenty of comics that are enjoyable for people of all ages, like those with simple and fun stories.
The Bible isn't intended to be fiction. It's a complex text that holds deep religious and historical value for millions. Whether it's the stories, laws, or prophecies, they are believed to have a profound purpose beyond mere fiction.
I'm not sure what 'girls sex - banding balls' exactly means. It might be a very unclear or wrongly worded phrase. If you could clarify it, that would be great.