Negi Haruba is a leading figure in contemporary shonen manga, celebrated for his ability to blend heartwarming romance with intricate, puzzle-like narratives. He achieved massive international success with The Quintessential Quintuplets, a series that revitalized the harem genre through its clever "whodunnit" wedding mystery and distinct character writing.

Haruba’s style is defined by clean, expressive character designs and vibrant, polished linework. He excels at creating expressive facial chemistry and subtle visual cues that hint at deeper plot connections. Currently, with Go! Go! Loser Ranger!, he has pivoted toward subverting the "Sentai" genre, showcasing his versatility in handling dark satire and high-stakes action.