ตอนที่ 1: ไลท์เข้าร่วมพรรคที่เน้นความเท่าเทียม แม้จะมีทักษะอินฟินิท กาช่าที่ไร้ประโยชน์และระดับเอฟ

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Light, a young human boy, sets out from his homeland with the goal of becoming a great adventurer. However, his gift of Infinite Gacha only produces useless junk. As a result, he is given the lowest rank of F-class by the adventurer's guild. Despite that, the Concord of the Tribes, a party that advocates racial equality and seeks to end discrimination, extends him a hand. He is welcomed into the powerful party and takes on the world's largest, toughtest, and deadliest dungeon, the Abyss. However... (Source: Muse Asia)