choujuu giga
鳥獣戯画 (Choujuu-Giga, Scrolls of Frolicking Animals) is the abbreviated name of 鳥獣人物戯画 (Choujuu-Jinbutsu-Giga, Scrolls of Frolicking Animals and Humans), a set of four picture scrolls created in the 12th~13th century.
The first scroll is considered to be Japan's first manga.
The frogs printed on Moriya Suwako's dress were taken from these scrolls.