Because by the dialogue it sounds like they are scared by yuka but then the Reimukurri is rub-rubbing on Yuka (that clearly is her skirt)
@_@ i'm confused.
Take it easy!Ruuub RuuubYu!I'm giving them to Miss Yuuka.Uh-huh.Those flowers are pretty. Are you giving them to someone?You were escaping from Kazami Yuuka?※This is a smile.Smirk