Peasuke Soramame is the younger brother of Taro Soramame and attends Penguin Village Middle School alongside classmates Arale Norimaki and Akane Kimidori. His parents are Kurikinton and Mame Soramame, and he shares a family connection as cousins with Akane and Aoi Kimidori. Physically, Peasuke remains notably short even into adulthood. He consistently wears an animal hat resembling his mother's, a choice that draws criticism from Taro for cramping his style; this hat appeared gray instead of white in the 1997 series remake. Sensitive and insecure, particularly about his unchanging height, Peasuke deeply admires his older brother Taro and aspires to emulate him. Despite occasional timidity, he often demonstrates greater reasonableness and moral awareness than other Penguin Village residents. A key example occurred when Arale found 500 yen: while Akane suggested using it for drinks, Peasuke insisted on turning it in to the police as lost property. He first appeared during Arale's initial school day, witnessing her extraordinary strength and subsequently joining her friend group. Significant moments in his development include a prehistoric time-travel expedition with Senbei and Arale, leading to the acquisition of Gatchan's egg, and his disappointment after using Senbei's Future Camera revealed his height would remain unchanged for the next decade. Peasuke develops romantic feelings for Hiyoko, a girl taller than him. Their meeting happened when he tried to aid a lost cat-girl in the rain; Hiyoko intervened, mistakenly perceiving Peasuke himself as a lost child due to his stature. His attempts to connect involved writing a letter, which friends tried to deliver, resulting in comedic misunderstandings involving Hiyoko's younger sister Suzume. Arale's intervention with a size-altering device accidentally shrank Hiyoko to insect size, forcing Peasuke to rescue her from a beetle and ultimately bringing them closer. Peasuke marries Hiyoko, and they have a son named Poosuke who resembles his father. Future depictions show Peasuke maintaining his youthful appearance and short stature decades later. Beyond the main series, Peasuke appears in *Dragon Ball* during the Red Ribbon Army Saga, shown leaving school for vacation in the manga and studying at a coffee shop in the anime. In *Dragon Ball Super*'s "Future" Trunks Saga, he is present at the Coffee Pot when Arale visits. He also features in *Dragon Ball Heroes: Victory Mission* during a tournament at Satan Mall. A live-action commercial for GU clothing depicts him alongside Akane and Taro watching Arale model outfits. Peasuke collects autographs from individuals he finds interesting, a habit inspired by his creator Akira Toriyama. His character design was referenced in a brief scene from the *Owarimonogatari* special *Hitagi Rendezvous*.