Question: A singer who is a quarter Japanese, a quarter Chinese, and half German, is a member of a Japanese boy band that is managed by Johnny & Associates, and had an average age of what when they debuted?
Sentence (from "Hiroshi Nagano"): He is famous and well known for his role in the popular Tokusatsu series, Ultraman Tiga as the series main lead, Daigo Madoka, the human form of Ultraman Tiga.
Relevant evidence: No