Chun Longhua is a little girl from Infinity Fortress and the sister of Qinglong. She is a friend of Ginji.
Quilong calls his sister and trying to run away from the enemies. Longhua protected his brother from being hit by the monsters of Beltline. When Ginji found her, she was dying in his arms. That's were the Lightning Emperor was born.
AnimeLonghua has a short appearance in the anime. Ginji and her were running away from the enemies. Later on, she dies on Ginji's arms. It was never shown how she died.
After she dies, the Lightning emperor was born.