Ryun and Narumi, who live next door in the apartment, are like cats and dogs, constantly at odds. One day, Narumi, who was drunk, accidentally breaks into Ryun's house, and this incident leads to a relationship where they go back and forth between each other's rooms, as close as fighting friends. Even though they are attracted to each other, they can't be honest, and Ryun is moving far away. The chance to convey their feelings is approaching, and the last day while still fighting...! *the recorded content may vary depending on the distribution method.