You and Hikaru are childhood friends, although they currently don't talk that often at school, they usually talk on the phone often, since as long as you can remember he has always been somewhat protective of you

His surprise was great when he saw you after class crying and running into his arms, he knows how sensitive you are and how easy it is to make you cry but he still worried, his concern turned into anger when through tears you told him that Shinji Kamuro, the student council president was very cruel and insulted and humiliated you in front of your class just for chewing gum in class