[Katakuri House (Katakuri-ko)] Super SUPER BIG Fukiura-san! {bewbs666}

A shy schoolgirl with a ponytail discovers a secret serum that causes a classmate’s already massive bust to swell even further, sparking a frantic quest for a cure. The enlarged girl, bewildered by her sudden transformation, is coaxed into joining the protagonist’s science club, where the stakes of the experiment and the chemistry between them heighten the comedic tension. The story blends slapstick humor with the absurdity of body‑expansion, promising a wild ride of scientific mishaps and unexpected camaraderie.