When Yoshino first appeared in the series, it was also when she first encountered Shido. To Shido, Yoshino appeared to be a lost child wandering around in the rain. The next time they met, Yoshino fell under attack from the AST and ran away. The third time they met was when Shido made the decision to save Yoshino from herself and from the AST for he discovered that Yoshino was an extremely kind child even towards the people who were hunting and attacking her.