Members of the Yoshimoto Kogyo entertainment conglomerate, they performed on the Fuji TV variety show Mecha-Mecha Iketeru!

Both were reprimanded by their agency Yoshimoto Kogyo and were forced to resign from the show Tensai Terebi-kun Wide, which they were appearing on at the time.

[2] On July 18, 2006, it was found out that Yamamoto was questioned by the Hakodate West Police station in Hokkaidō on suspicion of statutory rape of a minor.

According to police reports, between July 16 and 17, Yamamoto was staying at a business hotel in Hakodate for a match with the Ibaraki Golden Goals when he met the seventeen-year-old girl partying; he had picked her up there, drank alcohol, and engaged in sexual intercourse with her.

Yamamoto partially denied the allegations, saying that there was consent and "I [he] did not force the girl into my [his] room," but was referred to the prosecutor's office on the 29th of the same month.