Copyright © Mitsuhide Yoshikawa, 2022

Interior design and illustrations: Nakamitsu Design

Illustrations (before title page): Saran.

All rights reserved.

Original Japanese edition published by ASA Publishing Co., Ltd.

Simplified Chinese translation copyright © 2024 by United Sky (Beijing) New Media Co., Ltd.

This Simplified Chinese edition published by arrangement with ASA Publishing Co., Ltd., Tokyo,

through Tuttle-Mori Agency, Inc., Tokyo.