Erica moves to Japan and also transfers to his school, causing him trouble on her first day. Godou meets Mariya Yuri, a shrine princess, and learns of The Committee for the Compilation of True History, a magic organization based in Japan. Erica brings Godou to Italy to meet the representatives of the country's Society of Magicians, and show them his new powers by facing him in a duel. The representatives decide to entrust Godou with an important artifact upon seeing his abilities. He also finds out whether or not The Committee's beliefs for why Erica is staying by his side are true or not.
顕現したまつろわぬ神・ウルスラグナを倒し、神の能力を簒奪してカンピオーネとなった護堂。それから一週間後、護堂の元にはエリカがイタリアから押しかけて、教室でも堂々と愛を求めてくるという波乱の展開が！ 一方、カンピオーネの力に注目し護堂に接近する者の姿も…。日本の魔術関係者の監査機関「正史編纂委員会」の甘粕冬馬と、協力者の媛巫女・万里谷祐理である。甘粕は護堂に、エリカが魔術結社「赤銅黒十字」の密命で動いていることを告げ、警戒を促す。エリカに真意を問い正す護堂。すると、彼女は護堂をある場所に連れ出すのだが…？
