I didn't know anything about it, but honestly, the title Secretly More Powerful than the Hero is pure gold. I think it's great that it pokes fun at isekai clichés from the start (Truck-kun always makes his grand entrance! 🚚) and that the protagonist asks to be the opposite of the typical OP who breaks the universe: a “secretly OP weakling.” And the condition that his heart will explode if he's discovered is the perfect dramatic touch to make it fun.
You've totally convinced me, even though you say it's nothing special. Sometimes the simplest, most random stories that don't take themselves too seriously are the best ones for unwinding. I'm going to look for it, since 71 episodes will give me a good binge. Thanks for the recommendation!