Shikotsu

Shikotsu (指骨, Phalanx; Literally meaning Finger Bone) is a puppet wielded by Kaito Yakingaku.

Trivia

 * The author used the anatomy translation of "Phalanx" as a suitable name for the puppet, as a play on the Greek military unit, as it looked better than "Farankusu" (ファランクス).
 * A Phalanx is a ancient Greek and Macedonian military unit that consisted of several ranks and files of soldiers in close array with joined shields and long spears.