“Can you feel the vibrations from my phone?” Meet Hishikawa: a plain and lonely boy, and Senzaki: the popular boy whose phone is constantly exploding with notifications. To Hishikawa, the popular boy Senzaki seems like a world away. However, an unprecedented event one day brings them closer together. And on top of that, they end up doing this and that (read: naughty things) with the vibrations from Senzaki's phone. Thus begins their days spent together engaging in activities that make them “feel good”… But is this really friendship?! A story about youth, deep kisses and dangerous feelings between the class's most popular boy and the pure, dark-haired, plain old glasses boy.