The plot of Demon General Lucifer falling in love with a twelve-winged angel and giving birth to a son who was raised by a mage was more common. Here are some possible plots: Demon General Lucifer fell in love with a twelve-winged angel, but he was injured in a battle with the angel and was sent to the human world. In order to return to heaven, Lucifer decided to marry a human but was stopped by an angel. Later, Lucifer fell in love with a mage and gave birth to a son. In order to raise his son, the magician brought Lucifer back to heaven and sealed him up to become the guardian of mankind. Demon General Lucifer fell in love with the twelve-winged angel but failed in the battle with the angel. In order to save the situation, Lucifer decided to fight with the humans and gave birth to a son. Since Lucifer had lost the right to rule heaven, he became the guardian of humans and helped them resist the attack of angels. Demon General Lucifer fell in love with the twelve-winged angel but won the battle with the angel. Lucifer became the ruler of heaven and married a human, giving birth to a son. Since Lucifer had gained the respect of humans, his life was relatively peaceful, but he still guarded the safety of heaven.