Once in a while I feel like re-reading the last chapter and it always takes me quite a while to find it since it's just a one chapter story.
Yep. That last chapter remains one of my favourites.
I use a bookmark feature to help me memorize my favorite one-chapter story.
The tattoo is so cool.
I saw there was 3 anime episodes with the twins: http://myanimelist.net/anime.php?id=21771