A talking wallaby who loves Japan ends up plucked out of Australia and placed in a job as a substitute teacher, where he'll learn courage, make new friends, and teach life lessons—all while being compeletely adorable. Fans of a certain marmalade-loving bear will fall in love with this heart-melting manga about a fearless marsupial from down under!On safari in Australia, a wealthy traveler meets a talking wallaby who loves Japan and never thought he'd get a chance to visit. It turns out this traveler is also the principal of a private school in Japan, and before the little wallaby knows it, he's been whisked away to the land of the rising sun and plunked in front of a class full of students as a substitute teacher! Mr. Wallaby will need all the courage in his footlong frame to take responsibility for all these kids—and they may just find his cuteness too distracting to learn anything, too!Slice-of-life manga meets Paddington Bear meets a Steve Irwin nature special in this sweet and silly three-volume manga series. Marume Goshika is a manga artist who debuted in 2022 with Say Hello to Mr. Wallaby!, coming in English in print from Kodansha in 2026.