Haruka, a high school loner, is unexpectedly whisked away to another world with his classmates. Hopeful for cheat skills to aid his survival, he learns that the selection process is competitive, leaving him with only scraps. Hindered by his 'loner' trait, he struggles to form alliances in a world where partying up is crucial. Despite his solitary nature, when a crisis threatens his peers, Haruka resolves to save them without relying on cheats. Determined to forge his strength through unconventional means, he embarks on an unconventional journey in this ultimate guide to the tactics of the strongest loner in a new realm.