胡蝶の夢－

From Author Wars - https://authorwars.com/books/hu-die-nomeng-3262809.html

Overview:

Title: 胡蝶の夢－
Author: 忍丸
Year: 2022
Type: Novels
Series: わが家は幽世の貸本屋さん / The Haunted Bookstore: Gateway to a Parallel Universe
Number in Series: 7

Variant Titles:

2023. Butterfly Dreams