ブラック企業に勤める高橋哲也（タカハシ テツヤ）はある日の仕事帰り、異世界の勇者を召喚する大秘術に巻き込まれてしまう。
勇者ではなく一般人として異世界に召喚されたテツヤに待っていたのは、「限界レベル」というこの世界における成長限界が最弱の１であること、そして限界レベルが低い者は生きる価値がないという理不尽な定めであった。
“欠陥品”として魔物が生息する谷底に捨てられたテツヤだったが、死の間際にユニークスキル【死体吸収】が発動し……!?
死体の能力を吸収して最強へと成り上がれ、レベル１の男の異世界ファンタジーが開幕！
Tetsuya Takahashi was suddenly summoned to another world. However, his invocation was a mistake and after participating in the level review…he has the weakest [level limit], lv.1, the king seeing his limit calls him “defective” and condemns him to death! Despite being summoned against his will. Tetsuya is thrown into the valley of the monsters. There he was attacked and brought to the brink of death, and when he used his unique skill [Absorb Corpse], he gained the skills that the corpse possessed! “…Let’s do it! Survive in this world, become strong and take revenge on those who were summoned. The “level 1” man who was called “defective” and “weak”… now begins the ascent to be the strongest!
