Haruka, a high school loner, is whisked away to another world with his classmates. Expecting to choose a powerful cheat skill from a list, he is dismayed to find them all taken. Left with scraps, his loner nature hinders him from forming a party. Determined to defy his solitary fate, he vows to save his classmates without relying on cheats. Thus begins his unconventional journey in this new world, forging his strength through unconventional means in the face of an impending crisis. Follow Haruka as he navigates this otherworldly adventure in 'The Strongest Loner's Strategy Guide'!