Take Metro Line 1.
According to the search on Baidu Map, Kuancheng Wanda Station is 597 meters away from Changchun Station, and it takes 5 minutes to take Metro Line 1.
1. First go to Kuancheng Store Wanda, walk 80 minutes, and get on the train at Changchun North Station.
2. Next, take Metro Line 1 and get off at Changchun Station.
3. Finally walk 10 meters to reach Changchun Station.