The lonely girl Bai An has a shadow named "Ping Ping" accompanying her in her heart. However, the birth of her younger brother Bai Ping makes her lose her "Ping Ping". Bai An is increasingly going into the abyss in isolation, but Bai Ping is unwilling to let her sister die. They redeem each other and return to a happy life.
Purpose: Sincere feelings can guide lost children