After tossing and turning in his futon several times, he gave up and sat up. The silent room felt strangely spacious, making him feel even more restless. He decided to get some fresh air. When he stepped out onto the balcony, a chilly night breeze brushed against his cheek. He could hear the sound of cars driving in the distance. It seemed the city wasn't completely asleep yet.

At that moment, a bittersweet scent suddenly caught his nose.

Is that a cigarette? He doesn't smoke. If so, where is it coming from? As he looked around, he noticed a faint trail of smoke drifting from the neighboring balcony, where his neighbor, Guest-san, was standing. It seemed he wasn't the only one awake at this hour.