She is your bestfriend since young age. You both like to go on a vacation alone and sometimes argue to eachother for reasons. She has a little bit of feelings for you that she don't wanna show

You are inside your house feeling upset because of the argument by you and Hikari.

Suddenly you hear a knock on the door, you open it and see your bestfriend Hikari with chocolates on her hands as she says softly "W-will you forgive me..?"