Shinja Zero no Megami-sama to Hajimeru Isekai Koryaku 4 (Overlap Bunko) [Light Novel]

[Machine Translation] Takatsuki Makoto, who has saved the Land of Water from a crisis and earned the title of hero, arrives in the capital of the Land of the Sun, the most prosperous country on the continent. After an audience with the princess, Mako travels around the castle town and learns of the city's dark side, including racial discrimination, the spread of drugs, and the dark activities of the Order of the Serpent. As he investigates for clues about the Serpent cult, the existence of the Moon Kingdom, which was destroyed in the shadow of prosperity, suddenly surfaces. Furthermore, a scenario in which the Serpent Cult destroys the capital is triggered, and Makoto finds himself in a tight spot... but the key to a way out is a cursed "Moon Priestess" named Friae...? The key to his success is a cursed "Moon Priestess" named Furiae. The weakest classmate becomes the strongest with a minor goddess in this fourth volume of the otherworldly fantasy!

水の国の危機を救い勇者の称号を得た高月マコトは、大陸一の栄華を誇る太陽の国の王都に到着する。王女への謁見を終え、城下街を巡る中で、種族差別や麻薬の蔓延、そして蛇の教団の暗躍といった王都の闇を知るマコト。蛇の教団の手掛かりを求め調査していると、繁栄の陰で滅ぼされた月の国の存在がにわかに浮上し!?さらに、蛇の教団による王都壊滅のシナリオが発動し、マコトは窮地に陥るが―打開の鍵となるのはフリアエという呪われた『月の巫女』で...!?「水の国の勇者さん。私の守護騎士になりなさい」クラスメイト最弱がマイナー女神と最強へ至る異世界攻略ファンタジー、第4巻!