gatensoku_sen_(tottema)
"The Doll Learning From The Natural Laws."
Tottema's original Touhou character. Before the release of Touhou Hisoutensoku, she was modeled after 學天則 (Gakutensoku ) as the last boss.
She has a laurel crown on her head, "the signal arrow (symbol)-shaped pen" in her right hand, "the lamp of inspiration" in her left hand, and a gear-shaped belt. Her ability is "transcribing flashes of inspiration." She is an automaton while Gakutensoku was Japan's first robot.
She is associated with the weather type "Kourin (Halo)." (Effects: Collision detection of shooting enlarges.)