Kaito nodded. “I have a map,” he said. “It’s full of places I haven’t been yet.” He tapped the pile of letters in his bag. “These letters… they’re unsent. Kind of like a map that points to dead-ends. I keep them anyway.”

Kaito shrugged. “Maybe. Wishes for the ship.”

Shinseki no ko to o-tomari—this was their third night, and not a conclusion but an arithmetic of commas: an accumulation of small returns that, added together, might one day be more than the sum of its pauses. If you’d like, I can expand this into a longer story, write it in a different tone (e.g., comedic, noir, or speculative sci-fi), or translate it into Japanese. Which would you prefer?

When evening came, Mina cooked the same curry she'd made before and placed two bowls on the table. She waited with patient smallness, the house breathing around her. The night arrived, and the rain had not, but her windows caught the city’s light as if the rain had left a faint afterimage on the glass.

“You will,” Mina said, without making it a promise and without making it a lie.

“You don’t have to go very far,” she said, because she wanted to anchor him and also because she believed the sentiment true.

Kaito stepped into the corridor and closed the door behind him. The hallway smelled faintly of wet cardboard and finishing paint. The elevator arrived like an exhalation, and he smiled at the neighbor who always pressed the button for the seventh floor because his leg ached. The elevator hummed and then the hallway was empty. For a moment Mina expected him to stand in the doorway and then to step back in, but the sound of his footsteps faded and became part of the house’s memory.