A small town boy whose spiritual seed was abolished unexpectedly received the favor of an ancient treasure. In a prosperous world of martial arts, in a perilous situation, what should Wang Hao, who is in the center of the whirlpool, do?

After inheriting the company from their parents, siblings Yuuhi and Yuamu Oudou have started to work at Ultraterrestrial Trouble Solutions, an organization that hunts aliens. Although they have never encountered aliens before, Yuuhi is desperate to meet one as he believes that an alien has stolen his important item called the "Earthdamar." One day, while searching for extraterrestrial creatures, Yuuhi and Yuamu find a strange spot in the forest where many trees have fallen, forming a scenery similar to a crop circle. As they venture further, they discover a mysterious spaceship and enter it out of curiosity. To their surprise, they come across Yudias Velgear, an alien from the Velgear Star Cluster. As it turns out, Yudias is seeking to learn about Rush Duel—a card game popular among elementary school students—as he believes that it will save his home from a long war. With the siblings agreeing to teach Yudias about Rush Duel, they eventually realize that their first contact with an alien may not be a random coincidence.

The main protagonist Sendou Aichi, is a timid and mundane third-year middle school boy. The thing that supported Aichi's heart, was the "Blaster Blade" card that he received as a child. It's an important rare card from "Vanguard", a card game with the imaginary world of "Planet Cray" as its stage. From the day he reunited with the person who gave him that card "Toshiki Kai", Aichi's everyday life began to change.

Zhen Dao Ge tells a revenge story about the homeless young man He Fangzhi, whose family was betrayed by his own people while they were migrating, and was brutally murdered. The male protagonist, He Fangzhi, pretended to be dead and escaped a scene. After the massacre, He practiced an extraordinary martial arts in Shuzhong and determined to avenge his family. With a fan and a place name that showed the clues of the enemy, He embarked on the road of revenge.