Isekai Ojisan

After spending seventeen years trapped in a fantasy world, a thirty-four-year-old man finally makes his way back to present-day Japan. His nephew, Takafumi, soon discovers the bizarre consequences of sending a die-hard Sega enthusiast to another dimension for nearly two decades. The uncle’s return stirs up chaos as his outdated gaming obsession clashes with modern life. Strange encounters unfold as his past and present collide, revealing how his time in the isekai world has warped his perspective. Takafumi watches in disbelief as his uncle’s eccentric habits and otherworldly experiences disrupt everyday reality. The once-familiar world now feels surreal through the lens of someone who lived in a realm of magic and monsters. The uncle’s outdated references and peculiar behavior leave everyone baffled, creating hilarious and unexpected situations. As the days pass, Takafumi realizes just how deeply those seventeen years have altered his uncle’s personality. The line between fantasy and reality blurs, leaving both past acquaintances and new faces bewildered. What was once a simple reunion turns into a whirlwind of absurdity, proving that time in another world changes a person in ways no one could predict.