Tensei Kenja no Isekai Life: Dai-2 no Shokugyou wo Ete, Sekai Saikyou ni Narimashita

Yuji Sano works himself numb at an exploitative company before suddenly finding himself in another world with the profession of Monster Tamer, a job few consider a path to real power. A friendly group of slimes begins following him, and through their connection to magical books he gains enough knowledge and ability to unlock a second profession: Sage. The problem is that Yuji treats his new strength like another tool for finishing work and barely realizes how far above ordinary adventurers he has become. He travels from town to town hoping for a quiet living, only to encounter monsters, disasters, and a mysterious organization threatening the world. Every crisis he solves with accidental ease makes the simple life he wants harder to maintain than defeating the enemies themselves.