My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World! (2022)

Corporate worker Yuji Sano is trapped in a monotonous routine until a sudden message from his computer pulls him into a fantastical realm. Initially believing it to be a dream, Yuji hopes to return to his mundane life filled with deadlines. However, he soon realizes that this new world offers unexpected opportunities, especially with his unique Monster Tamer class, which lets him bond with slimes. As these slimes help him gather magical knowledge, Yuji unexpectedly ascends to the title of the most powerful sage. Now, he must navigate his newfound abilities while grappling with the remnants of his old life.