旅する絵筆とバックパック30

From Author Wars - https://authorwars.com/books/lu-suruhui-bi-tobatsukupatsuku30-3038436.html

Overview:

Title: 旅する絵筆とバックパック30
Author: 風見鶏
Year: 2020
Type: Novels
Series: さよなら異世界、またきて明日 / Goodbye Otherworld, See You Tomorrow
Number in Series: 1

Variant Titles:

2021. The Traveling Paintbrush and the Hefty Backpack