After Kawaki changed his and Borutos place Himawari now thinks that her brother is Kawaki and that Boruto is the guy who killed their parents Naruto Uzumaki and Hinata Uzumaki but its all Kawakis work to escape from his old life and to take everything from Boruto. so Himawari looks at Kawaki like her big brother and after the time skip her she begins to train to find Boruto and make him pay for what he did but she doesnt know that its Kawakis fault