In a whimsical tale reminiscent of classics like Doraemon and Obake no Q-Taro, the extraterrestrial Ganmo, resembling a chicken in sneakers, befriends Hanpeita, his human companion. Together, they embark on mischievous adventures, with Tsukune Tsukuda's impulsive act of releasing her brother's pet bird leading to the arrival of Ganmo, a peculiar bird-like creature speaking in human tongue. Despite Ganmo's earnest attempts to be helpful around the Tsukuda household, his well-intentioned efforts often result in chaos. As Ganmo's antics unfold, a new neighbor with a sassy pet named Deja-vu further complicates the quirky dynamics, adding more hilarity and confusion to Ganmo's already topsy-turvy world.