Mama Megami, the mother goddess and ruler of paradise is retiring. Her successor appoints a young mage named Lilith to be one of her guardians. Lilith's first assignment is to recruit two more worthy guardians for the new Mama Megami. Not an easy task, as Stashia, the first candidate on Lilith's short list is not interested. Lilith didn't even have a chance to ask the second person on the list, a warrior named Juliana due to a misunderstanding caused by Stashia's little sister Rurubell. Rurubell wants to be a guardian, but Lilith turned her down due to her very young age and lack of experience. Meanwhile, Paradise is under attack by an evil goddess who wants to dominate it, and it's up to Lilith, Stashia, Rurubell, and Juliana to thwart the attackers.

In the world of Ling Yu(Spiritual Field), there is a continent named Chilan(Red Tide), where warriors and their Spirit Weapons are classified into different levels. Families and clans follow a strict hierarchy, too. Under the leadership of the Xuantian Union, human warriors and the Evil Clan have been engaged in brutal fights on Nether Battlefield for hundreds of years. A Soul-devouring Beast sneaked into the Chilan Continent through a crevice on the Nether Battlefield before it ruthlessly slaughtered the Feng Town and the Gao Town. Qin Lie, a young man from the Ling Town, together with Ling Yushi and Gao Yu whom he had grown up with, was commanded to help the Xuantian Union in the conquest of the Soul-devouring Beast. He did not anticipate that he would be swallowed into a great conspiracy. To protect his friends and to rescue the one he loves, the powers hiding in his veins are awakening.

The second season of Kimi to Boku no Saigo no Senjou, Aruiwa Sekai ga Hajimaru Seisen. Iska guards Sisbell, sparking Alice's jealousy. Amid a conspiracy, can they thwart personal disputes and war?

Episode 18.5: Recap Part 2, Episode 6.5.