デスマーチからはじまる異世界狂想曲 (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: Suzuki aka "Satu," a programmer in the midst of a death march, takes a nap and finds himself thrown into an alien world he has never seen before. He was taking a nap when he found himself thrown into an alien world he had never seen before, and in front of him was a huge army of skalengecks.　Dream or reality, here begins Satu's journey!

(Translator: DeepL)