Mirai

Four-year-old Kun Oota lives a pampered life as an only child in a quiet part of the city, surrounded by his parents and their dog, Yukko. But when his baby sister Mirai arrives, his world turns upside-down-suddenly, he’s no longer the center of attention. No matter how much he fusses or complains, his parents’ affection seems entirely focused on Mirai. To help Kun adjust, he’s sent on an unexpected journey through time, where he encounters his family at different points in their lives. Along the way, he begins to understand what family truly means-and what it takes to be a good big brother.