Actually, Alexia never revealed any other members' identities to her. The principles of this organization have always been strictly upheld since its inception.
"No wonder last time when Number Three wanted my research materials, Number Four just acted like they were chatting, with no intention of getting involved at all."
Lanci analyzed while resting his chin on his hand.
So it turned out they were completely standing on the sidelines.
The initially nonchalant Number Four, enlisted by the Princess, seemed more like an outsider who preferred not to participate. Yet, the fact that the Princess entrusted Number Four with the card signified how crucial they were in her eyes for striking back against the Blood Clan.
As for Number Nine, they were even more enigmatic.