My Son, the Crown Prince

Female lead Julia Jewel uses an incense burner to send food, water, medicine, and weapons to male lead, Crown Prince Liu Heng of Da Ning Dynasty. She helps him defeat the Northern Horde, eliminate internal threats, and ascend the throne. Crown Prince and General Chen then travel through the incense burner to a supermarket to help Julia get rid of the greedy couple, Long Tang and Rong Tian. The leads establish a beautiful friendship.