Sawada Natsume and Tsuna are twins. One is loved by his parent. The other one is a slave kept in the house, constantly abused by Iemitsu, Nana and Natsume. What will change when Reborn - the greatest hitman in the world come and train Sawada Natsume as the heir to the strongest mafia in the world. OMG i'm suck at these summaries anyway just read the story and please give me feedback because this is the first time i write story. So if there are any mistakes please forgive me!