Whitebeard appears to have some health problems, possibly stemming from his advanced age or from his ferocious encounters with other great pirates during his earlier days. He is always surrounded by nurses and is hooked up to intravenous tubes. But despite this, he still drinks rum by (and directly from) the barrel. Even with his health issues, he is still considered the world's strongest pirate, which raises the question of how powerful he must have been in his prime. When he first appears, he receives a letter from Red-Haired Shanks on behalf of Shanks' newest crewmate Rockstar. However, before even reading the letter, Whitebeard throws it away, claiming that if Shanks wants to talk, then he should visit in person. He even asks Rockstar to tell Shanks to prepare an expensive bottle of sake when Shanks comes to visit. When Shanks finally breaks through a blockade for their meeting, he calls him "boy", showing his feelings for the much younger captain, compared to his own age and prestige in the "New World" section of the Grand Line. (Source: Wikipedia)

Daisuke is a scion of the billionaire Kanbe family. Utilizing abundant financial resources and the latest technology, he solves various cases in a semi-aggressive manner. He becomes a member of the Metropolitan Police Department's Modern Crime Prevention Task Force, and forms buddies with Haru Katou. However, he seems to have no ear to hear what Katou says. (Source: Fugou Keiji Balance: Unlimited Wiki)