Shikake Ehon No Shojo (Shogakukan Bunko Ho 12-1)

[Machine Translation] At a flea market at a shrine, junior high school student Otone Kodera buys an old picture book, mistaking it for a book she is looking for. However, even if she sells the book to a used bookstore or leaves it on the bookshelf at school, it is a mysterious stalker book that always comes back to Ondee. Finally, the pages turn by themselves, and a girl in a black dress, Kai, who claims to be the last of the alchemists, appears inside. Ondo and her cousin, Takayuki, are caught between the real world and the world of the picture book, and are pushed around by the fast-paced witch child, Kai. Can these impressionable junior high school students, caught up in a mysterious incident, become "a little happier than before" through a summer adventure?

中学生の小寺音々は、神社のフリーマーケットでお目当ての本と間違えて、一冊の古い仕掛け絵本を買ってしまう。ところがこの本、古書店に売り払っても学校の本棚に置いて帰っても、必ず音々のもとに戻ってくる怪奇ストーカー本で、ついには勝手にページがめくれ、中から錬金術師の末えいを名乗る黒ワンピース姿の少女カイが現れた。現実世界と絵本の世界のはざまで、マイペースな魔女っ子カイに振り回される音々と従弟のタカユキ。果たして摩訶不思議な事件に巻き込まれた多感な中学生は、ひと夏の大冒険で「今よりもうちょっと幸せ」になれるのか?