Dungeon Seeker [Light Novel]

[Machine Translation] One day, Jumpei Takeda, who was being bullied in class, is summoned to another world on a whim by "God" together with Shota Kido, the mastermind of the bullying, and his childhood friend Noriko Ryumiya. He thought he was summoned as a hero, but for some reason, only Junpei has the status of a bum, below that of a villager. He is inferior and can't even fight a good battle, and is looked down upon by everyone around him. Then, through Kido's deviousness and Noriko's treachery, Jumpei is thrust into a labyrinth as a sacrifice. The labyrinth is a hellish dungeon with a zero percent chance of survival, where demons clamor and famous adventurers have tried and failed. The labyrinth is littered with the corpses of adventurers. Unstandard monsters suddenly appear. Junpei was prepared to die in the desperate situation, but then he came up with a brilliant plan for a quick turnaround. The weakest dungeon seeker, who has found a way to break through the labyrinth, begins his revenge against the traitors...

クラスで苛めに遭っていた武田順平はある日、苛めの首謀者たる木戸翔太や幼馴染の竜宮紀子らと共に、「神」の気まぐれによって異世界へ召喚されてしまう。勇者としてのチート召喚―かと思いきや、なぜか順平だけは村人以下のクズステータス。ろくに戦闘も出来ない劣等ぶりで、周囲から軽んじられていた。そんな折、木戸の悪巧みと紀子の裏切りによって、順平はとある迷宮に生贄として突き落とされてしまう。そこは、魔物犇めく『狭間の迷宮』―名だたる冒険者達が挑んでは散っていった生還率0パーセントの地獄ダンジョンであった。冒険者の屍が散乱する迷宮内。いきなり立ちはだかる規格外のモンスター。絶体絶命の状況下、半ば死を覚悟した順平はしかし、そこで起死回生の奇策を閃く。迷宮踏破への活路を見出した最弱ダンジョンシーカーが、裏切り者達への復讐を開始する―