Yasuda was in charge of the tenor saxophone (occasionally a clarinet) as a successor to Masahiro Ishida, who was suffering from drug overdose and retired to see a psychiatrist. With a serious personality, he was the only member to appear in "Adult Manga" 1,835 times. Also, in "Shabontama Holiday", he was known for his role as "Deputy Director of the Kintoto Movie Studio", a contender who teamed up with Osami Nabe, and kept yelling "Yasuda!" In the end. He also plays the role of reversing his position. Also, the method of playing the saxophone while making the bridge is also famous, and it is shown on stage and in some Crazy Movies.