Thesis, a second-year student at the Faculty of Veterinary. One rainy day he meets Swy Si, a girl who is afraid of rain. They became great friends, but due to Swy Si fear of the rain, Thesis is not able to enjoy the things he likes with the person he loves the most. At that moment, Thesis makes a promise to protect Swy Si from everything that she fears even if he is hurt by that.