The Three Musketeers (Alexandre Dumas) are used as a basis to picture the adventures of a young boy and a young woman. This time, D'Artagnan (the young boy) doesn't go to Paris in order to become a musketeer, but to find an elephant. It is an important aspect of his personality. He needs it as a proof he was right when he fought the son of an important person. His personality will cause him to be in trouble. This time, the young woman is not who we think. And it is the main originality of this anime. Here, I prefer not to say more. You will see. Wefind all the famous characters of Alexandre Dumas, the King, the Queen, the Cardinal, Constance, Milady and of course the Three Musketeers (who were four). A new character, Jean, is added as companion of D'Artagnan.

The storyline is very different from the original excepted for the famous part of the Queen's jewels.
It is less adult and mature than the novel. But it is interesting to see how Japanese adapt monuments of European Culture.

And, if you see subbed, you will be surprised to hear D'Artagnan speak Japanese :-)