Moto Tansakusha no Ojii-chan: Mago ni Segamarete Dungeon Haishin o Hajimeta njaga, Nazeka Bazuriotta wai

Decades have passed since mysterious dungeons first appeared across the world, fundamentally changing society. Genji Kudo is a retired dungeon explorer who left his adventuring days behind thirty years ago. Now living a quiet life as an elderly man, his peaceful routine is disrupted when his grandchild makes an enthusiastic request: stream a live dungeon run for the internet to see. Coaxed by his grandchild’s persistent encouragement, Genji reluctantly agrees to step back into the treacherous depths of a dungeon for the first time in three decades. However, the modern era of dungeon diving has evolved significantly since Genji’s retirement. Instead of relying on contemporary tactics and current conventions, he approaches every challenge using the unorthodox strategies and old-school methods he mastered during his youth. To everyone's astonishment, these forgotten techniques prove remarkably effective, yielding unexpected results that defy modern logic. What begins as a simple favor for his grandchild quickly spirals out of control. Genji’s unconventional playstyle captivates viewers, and his livestreams rapidly gain traction online. Before long, the elderly former explorer becomes an overnight viral sensation, sparking a nationwide frenzy and proving that true skill never truly fades with age.