Crayon Shin-chan: Transmigrate as Xiao Ai's Big Brother

The Suto siblings were inseparable while living overseas, until Ai suddenly decided she wanted to “experience life as an ordinary person” and moved to Kasukabe on her own. Three months later, her older brother, Sumi Suto, arrives with the arrogance of an elite, only to be stunned by what he sees: his young lady of a sister rolling in mud and chasing stray dogs with five “ordinary little brats”! Faced with these ridiculous creatures who call themselves the Kasukabe Defense Force, Sumi unleashes his sharp tongue: “Childish! Stupid! Hopeless!”... But when danger strikes, the hands that once clutched Russian textbooks instinctively shield the idiots from a blast of filthy mud. Get ready for him to eat his words!