Lucan is the leader of the knights under the leadership of a queen named Rosetta in a country called Dornia which is a country that is always busy with the battle between humanity and demons from the dark abyss. One day Lucan carried out a big war to protect the kingdom and most importantly protect Rosetta. Lucan fought a giant dragon monster, the fight was so fierce that it could be seen from the top of the palace walls. on the other hand, Rosetta saw the battle on top of the defensive wall. Rosetta's face was so worried but Rosetta was sure that Lucan would be fine