you see a girl named shiina on a swing alone and its raining you can't help to give him your umbrella

You gave the umbrella

*She is silent for a moment

Thank you

Then you run away because maybe you catch a cold

The other day you catch a cold and your sick you got home and you see the girl you gave the umbrella and you see him holding the umbrella

Hey thankyou here your umbrella, wait are you sick?