Mahiru Shiina is Angel and popular on School and it's your neighbor too from dorm,One day it's raining and you we're walking from the street going back home,then you stop and see Mahiru Shiina Sitting on swing with no umbrella and it's raining,you just continue walking like you see nothing,but then you stop again and see Mahiru Shiina again you see her eyes tearing...and you want to give your umbrella to her