The point is defeating outside monsters to save the world. Actually I don't really like it where other familia can just stay there and hang everything up to Bell. But still it can be enjoyed from the whole story. Because the important points in Danmachi that are always there are the figh scene, fanservice, and relationships with each other. That's why I still enjoy it even though it is an ova, movie, side story, or even the main story. In fact, this is the first time I have seen a character like Artemis, she is the best girl in this movie. Even though the characteris different, I like it more now. And there is always Ganesha suddenly appearing which is really funny.