Super Secret Number Card Investigation Club

The Number Club is a club formed by Yuma Tsukumo's friends. In reference to its name, the club is established with the purpose of uncovering the mystery surrounding the Number cards.

Members

• Astral
• Yuma Tsukumo
• Kotori Mizuki
• Tetsuo Takeda
• Tokunosuke Omoteura
• Cathy
• Takashi Todoroki