Quick answer — Chiharu Sawashiro and Shunsuke Takeuchi performed 1 anime theme, including "Paradigm Box" from Caligula.
Chiharu Sawashiro and Shunsuke Takeuchi performed the anime theme songs "Paradigm Box" (Caligula).
Chiharu Sawashiro and Shunsuke Takeuchi's first listed anime theme is "Paradigm Box", the opening of Caligula.