Boku no Imouto wa "Osaka Okan"

Kyousuke Ishihara is a typical high school student navigating life in Tokyo, but everything shifts when his younger sister, Namika, returns home after a decade in Osaka. As she acclimates to her new surroundings, Kyousuke finds himself intrigued by her unique dialect and the quirks that set her apart from the family he once knew.

Their journey is marked by humorous misunderstandings and heartwarming moments, as the siblings gradually bridge the gap created by years apart. Through shared meals and the exploration of their contrasting lifestyles, Kyousuke and Namika learn to embrace both their differences and the bonds of family that remain strong, no matter the distance.