Freyja was born from the most noble birth among valkyries. She was not only beautiful but also charitable and kind to everybody. She became the commander of the strongest valkyrie army called Einherjar. All Valkyries greatly respected her due to her strength, her personality and her intelligence. She was said to be the kindest and most beautiful valkyrie in the celestial world. Some time ago, an ancient monster began to riot and cause chaos in the Heavenly world and soon a long war broke out, known as the first heavenly war. Many died in this war including the two older sisters of Skuld. Her brother, Freyr, was also falsely accused and executed. Freyja vanished for some time and Reginleif became a political ruler who managed to empower the celestial guardians. For the peace of the Heavenly system, Freyja was the only one to lead the Valkyries directly and succeeds in sealing the ancient monster with a perfect strategy. She is the protagonist of victory & peace in Heavenly World and She is regarded as the greatest hero of Valkyries.

Seven Knights
Seven Knights (Korean: 세븐나이츠; RR: Sebeun Naitseu, Japanese: セブンナイツ, romanized: Sebun Naitsu) is an online free-to-play role-playing game created by Netmarble. It was released for Android and iOS devices in March 2014 in South Korea and in February 2016 in Japan. An anime television series adaptation by Liden Films and DOMERICA titled Seven Knights Revolution: Eiyū no Keishōsha is scheduled to air from April 2021. [Wikipedia]

Seven Knights Revolution: Hero Successor
Seven Knights Revolution: Eiyuu no Keishousha is set in a world where eons ago valiant heroes fought against the forces of "Destruction." While their deeds passed into legend, the power of these heroes was later inherited by "successors" who fought to protect the world. One day, Faria, a successor of the Seven Knights, saves an ordinary boy named Nemo from the forces of Destruction. During the ensuing battle, Nemo summons the power of a hero and becomes a successor as well. However, Nemo's hero is a stranger that is unknown to history, and so an epic journey where the past and present collide begins.