In the Douka Continent, people use holy relics to contract heroes from another world into cards to fight for themselves. Chu Yun, who traveled through time, can obtain a card simulator, which can create a clone entering another world and simulate the clone's growth experience. Slimes who swallow the sky and eat the earth... The mecha girl who kills ships and destroys the star... The battle angel who kills dragons and gods... Through repeated simulation and evolution, Chu Yun has created countless magical and powerful creatures and paper people.