Using the cheat skill only I can use, “Quest Board”, a seemingly average high school student fights his way through a myriad of incidents! A modern battle fantasy! “Congratulations! You have been selected to be a lab rat for God’s ability verification experiment.” Masago, a high school student who has no particular hobbies, and spends his days lazing around, suddenly acquires the ability, “Quest Board”. Driven by curiosity, Masago carries out quests given by God and acquires various skills and items. Out of nowhere, he is involved in various incidents! With the cheat skills that only Masago can use, will he be able to face the monsters that appear in the real world and keep clearing the quests?!

“You’re over the hill, old man.” With those words, the swordsman Kenneth is unceremoniously kicked out of his S-rank adventurer party. What they don’t know is that Kenneth’s true identity is the legendary “Ultimate Idle Master,” known only to a select few. To him, party adventuring was never more than a way to kill time. In search of a new cure for his boredom, Kenneth sets his sights on the uncharted Labyrinth of the Gods, a dungeon said to be impossible for mortals to conquer. Along the way, he teams up with Lily, a gunslinger, and Karen, a skilled mage. With his off-the-charts swordsmanship, Kenneth proceeds to overwhelm the labyrinth, dominating even the gods who rule it…!! Thus begins the ultimate heroic tale of an absurdly powerful yet perpetually bored middle-aged swordsman and the beautiful girls who join him!