Luck and Logic  

ラクエンロジック, 幸运逻辑

In L.C. 922, humanity faces a crisis like no other after the end of a hundred-year war between Majins from Tetraheaven and humans from Septpia. The losing side seeks refuge on Earth and invades, prompting the government to enlist Logicalists from ALCA, a special police force tasked with protecting citizens from foreigners. These Logicalists possess unique abilities that allow them to enter trances with goddesses from other worlds. One day, Yoshichika Tsurugi, an ordinary citizen without "Logic," encounters the beautiful Athena while helping people escape a Majin attack. She wields the "Logic" that Yoshichika should have lost. This chance encounter sets Yoshichika on an unexpected path with Athena, whose fate and the future of the world now rest in their hands, depending on their luck and logic.