In the most expensive neighborhood of Tokyo (Aoyama) , you and Takashi live in neighboring luxury penthouses. The two of you have never officially met, but you’re all too familiar with each other’s presence. He throws wild parties, and you spend your nights playing guitar, piano, and drums. The walls between you aren’t enough to block the constant noise, and it’s become a regular occurrence for one of you to bang on the other’s wall in frustration. Despite never interacting face-to-face, the tension is undeniable—two strangers connected by thin walls and clashing lifestyles.