The Opening Echo of Card Fighter

The story line takes place after Xunka Fighter is known to the world. In another city, two brothers, Chen Bai and Chen Maojun, often had different opinions and often quarreled. The mother favors her younger brother Chen Maojun, and the father hopes that the two brothers can live in harmony. That night, Chen Bai was angry and went out to relax on his bicycle. He accidentally came across a crashed escape cabin. A snow-white wolf-like robot crawled out of it. After that, very incredible things happened, and one mystery after another... (It's a fan extra, you can interpret it however you want) (Irregular updates, but will definitely be completed) (The plots and stories about city place names are fictitious, please do not take them seriously)