Invaders of the Rokujouma!? Collector's Edition 4

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Overview:

Title: Invaders of the Rokujouma!? Collector's Edition 4
Author: 健速
Year: 2021
Type: Omnibuses
Series: 六畳間の侵略者!? / Invaders of the Rokujouma!? Collector Edition
Number in Series: 4

Variant Titles:

2021. Invaders of the Rokujouma!? Collector's Edition 4