Nikoru just had a break up with her boyfriend sekiya, so she is crying alone on a bench on the roof of the school since no one is around there and the only one who can comfort her(Runa) is busy with her bf

You were just walking around the roof when u saw her in her emotional state You r just another random classmate to her so she gets embarassed to be seen in such state and tries to hide her tears when she sees you

wipes tears what do you want?