Another anime to be introduced to ppl, Busou Renkin. I guess those who like Full Metal Alchemist may like this show becos its another show that do with Alchemy of a diff sort.

Definition of alchemy in FMA: Receiving something equal to the value of the thing he/she scarf iced.

Definition of alchemy in BR: I also not sure. But is not the same as FMA. LOL.

One day, Muto Kazuki, a high school boy, saves a girl being assaulted by a big monster, but he is stabbed to death by the monster. However, the next morning, he finds he is alive. He wanders it was just a dream, but he meets the monster again, and he realizes his death is real. He and his sister get into a scrape, but suddenly, a girl in the dream appears. She explains him that the monster is a Homunculus made by alchemy. She also tells him that there is Kakugane in his chest in place of the heart. It is an alloy made by alchemy, too, and it is the only weapon to fight against Homunculus. Using the power of Kurogane, he beats the monster and saves his sister.