Before the Seer was built, people made a military weapon called Deroville's Seer in order to quell the war. However, it gradually became uncontrollable and established its own legion, which became a nightmare for mankind.
People used fire to fight fire, and created another Seraphine to fight against him. The two Seraphs fought equally, and finally died under the human light energy cannon.
After a long time, a human mechanic was targeted by the remnant forces and met a miracle while escaping. In order to protect his family, he secretly made a Seer-Kelan and gave it the title - Moonlight Knight.
Kailan integrated into this family, but the happy life was short-lived. The Legion forces did not intend to let go of this family. There were many people. Kailan tried his best to protect only the 2-year-old girl. The girl in his arms was crying, and Kailan sang a sad lullaby.
The heartbroken Kailan secretly vowed to protect his only relative. In this way, a Seer robot and a little human girl clung to each other until they found the dawn that belonged to them.
Intention: protection and responsibility, family love and friendship.