Appearances
- シルバー事件25区
- The SILVERCASE
- The 25th Ward: The Silver Case
- red, blue, and green
- TRAVIS STRIKES AGAIN: NO MORE HEROES
- NO MORE HEROES Ⅲ (poster only)
- ROMEO IS A DEAD MAN
Nomenclature
- Mokutaro Shiroyabu (The SILVERCASE, The 25th Ward: The Silver Case)
- Shiroyabu (The 25th Ward: The Silver Case, TRAVIS STRIKES AGAIN: NO MORE HEROES, ROMEO IS A DEAD MAN)
- White (The 25th Ward: The Silver Case)