My Two-Dimensional Summoning System

[Original God + Summoning + Second Dimension + Behind the Scenes + Upgrade + Different World] Thor: With you, I know what I'm looking for. Gong Rin: Do you want to have me? Juvenile! Keep moving forward Tatsumaki: Hello! How long are you going to hold me? Troubleheart Skadi: I've been waiting for you for too long... Too long. This time I want to protect all of you. Yun Yan, who traveled to another world, suddenly discovered that this world was invaded by an unknown energy. Alien beasts rose. Human beings built barriers, divided classes and regions, and power and power became the main theme of this world. He thought he would be shamed as a time traveler, so he followed the adventure group out of the city and into a dangerous jungle area for a considerable reward. He never expected to be attacked, and was forced to inhale deadly energy and awaken the two-dimensional summoning system. Ishtar, Esdeath, Thunder General, Skadi, Tatsumaki. Looking at the two-dimensional characters from the previous life in the card pool. Yun Yan knows that his golden finger has arrived. Look at how I can turn things upside down in this toppling world.