The karaoke box is like a love hotel, a completely private space where the couple's relationship has turned into a full-blown love hotel scenario. Hidden cameras are installed throughout the store, recording every act inside the private rooms. The constant possibility of a staff member suddenly walking in makes their moans and voices more excited than usual, echoing loudly with heavy reverb. You can feel an unusual thrill unlike anything in daily life. But seriously, having sex in a karaoke box at our age—doesn't that seem a little weird?