僕の妹は漢字が読める4

From Author Wars - https://authorwars.com/books/pu-nomei-hahan-zi-gadu-meru4-2448785.html

Overview:

Title: 僕の妹は漢字が読める4
Author: かじいたかし
Year: 2012
Type: Novels
Series: 僕の妹は漢字が読める / My Little Sister Can Read Kanji
Number in Series: 4

Variant Titles:

2018. My Little Sister Can Read Kanji 4

Genres/Themes:

young-adult sf