Jasmine Toguchi, Peace-Maker

In the sixth book in the series, eight-year-old Jasmine and her family travel to Hiroshima to visit her grandma and cousin Akari. After finally building a good relationship with her older sister, Sophie, Jasmine couldn't be more excited to spend more time together in Tokyo - and make a new friend in Akari. But Akari seems to only want to play with Sophie, and Jasmine's jealousy threatens to upend their visit. After a family trip to Peace Memorial Park, Jasmine realises it's up to her to make peace.