After returning home from school, Tsuna meets a strange boy named Futa whose ranking powers are wanted by a family called the Todd Famiglia. Futa manages to convince Tsuna into helping him escape and the two decide to leave the house using the back door, but this plan fails when Lambo and I-Pin tries to surprise the two, causing the men to go after them.
As Tsuna runs for it, he realizes that Futa is missing and that he is the one being chased. The three men begin to interrogate Tsuna about Futa's whereabouts when Futa arrives and uses his ranking power to make the three fight each other. As the three fight, Tsuna tries to get Futa to run, but Futa refuses, wanting to write down what he just ranked. However, the three stop fighting and approach the two. Reborn shoots Tsuna with another one of his Dying Will Bullet, Tsuna entering Dying Will Mode and easily defeating the Todd Famiglia members.
After the fight, Futa realizes that his rankings turned out to be inaccurate and asks Tsuna if he can stay with him, a request which Tsuna is unable to refuse.