If you're looking for manga similar to Sumikko Gurashi Movie 3, you might like these titles.
Tarepanda lives a happy and carefree life, but sometimes he needs to get out and go on a grand adventure. Rolling his way around the streets and down stairwells, Tarepanda finds himself in a variety of fun and interesting situations. Whether it's breaking bread with construction workers, lounging on a park bench, riding the train or becoming the subject of a painting, Tarepanda always manages to have a good time!
The Mummuchus are super cute little creatures that have been abandoned and left aside by their owners and decided to come to the city. Since they are alone and forgotten, they decided to band together and share their sadness, passions, adventures, and stories and they invite you to be part of a space in a cuddly corner full of friends and warmth.
Chocopa is a baby panda that loves chocolate! He eats chocolate all the time. One day when he's eating his favorite chocolate, his white fur turned to chocolate color all the sudden. Now he looks more like a bear. But don't worry. Chocopa just needs to drink milk to get his white fur back, then he's a panda again!
When the Twolegs destroy the warrior Clans' forest home, ThunderClan deputy Graystripe is captured trying to help his comrades escape! Trapped in the pampered life of a kittypet, Graystripe gets all the food and shelter he needs from his affectionate Twoleg family—but the forest is calling him. When he makes friends with a feisty kittypet named Millie, she encourages him to go in search of his lost friends. But will Graystripe ever find his way back to the Clan?
Ravenpaw has settled into life on the farm, away from the forest and Tigerstar's evil eye. He knows that leaving the warrior clans was the right choice, and he appreciates his quiet days and peaceful nights with his best friend, Barley. But when five rogue cats from Twolegplace come to the barn seeking shelter, Ravenpaw's new life is threatened. He and Barley must try to find a way to overpower the rogues—before they lose their home for good.