Yuusha Ga Maou Ni Seiken Kakusareta!

The brave hero, having endured innumerable hardships to stand before the Demon King, charged forward and swung his sword with all his might. However, the Demon King was completely unharmed, while the hero's sword broke into smithereens. "This isn't fair! You've got an unfair advantage! Your armor is too tough! It's all a conspiracy!" Facing the hero, now red with anger, the Demon King calmly said: "How about this? Seeing your unusual potential, I'll give you a challenge. If you can pass the trials and find all the holy swords I've hidden, then you'll be able to defeat me. Are you willing to accept?" "Willing! Absolutely willing! Let's get going!" The excited hero accepted the Demon King's challenge without a second thought. But what awaited him was— A slime so powerful it puts the Demon King to shame, a petty merchant who demands money for weapons. A female knight barely clinging to life from poisoning, a weeping girl destined to be eaten as a sacrifice. And a lake fairy so enchanting she seems out of place in any game that isn't adult-themed. ...Keep going, hero, a bright future is in store for you!