Etohanatsu! ~Zodiac Girlis an online card game developed by UNBALANCE Corporation.
Koi-Koi is a popular card game in Japan played with Hanafuda.
Yoshino Origuchi , the original author of “Monster Girl Doctor”, is in charge of the original and world view setting. Mr. Hiroki Haruse is an original character designer which is the illustration of “Kemono Friends 3” and “IDOLY PRIDE”.