Premise: Daisuke Tsuda (津田 大介 , Tsuda Daisuke , born September 13, 1977) , also known as Daisuke Han (ダイスケはん), is the harsh vocalist of the Japanese band Maximum the Hormone, while fellow band member Ryo Kawakita does most of the clean voices. He was born in Takamatsu, Kagawa.
Hypothesis: Daisuke Tsuda and Ryo Kawakita are both in the band, Maximum the Hormone