この世界がいずれ滅ぶことを、俺だけが知っている～モンスターが現れた世界で、死に戻りレベルアップ～

An ordinary office worker, Akira Ichijo, was attacked by a Minotaur on his way home from work - the next moment, he woke up in his office! Akira rose from the dead, inherited his level and status, and possessed a unique ability called "Returning to the Underworld" that allowed him to restart his life at a certain time!! In the cruel real world he faces, Akira uses his skills to seek survival with his childhood friend Nao Nanase. (Source: Kodansha, translated)