Establishes love-triangle harem-comedy structures reused across her later, more widely known work like Ranma 1/2 and Inuyasha.
Pacing and content sensibilities reflect that era more directly than Takahashi's later, more internationally distributed work.
Not directly connected in story, but it's by the same creator, Rumiko Takahashi, and established tropes and structures she reused across those later, more widely known series.
It's more commonly appreciated as foundational context for her later work rather than a typical starting point, given its early-1980s pacing and sensibilities.