Sawada Tsunayoshi, or Tsuna, is a boy that is not good at either studies or sports. So he gets sent a tutor that goes by the name of Reborn. Surprisingly, he is a baby and his purpose is to make Tsuna into the full-fledged 10th boss of the Vongole Family. Reborn teaches Tsuna via shooting him with a “Deathperation” bullet. Those that are shot by the bullet are revived to fulfull their dying will.