Two volumes of shojo manga by Yoshiko Takashina, featuring mystery elements. - Title: The School Trip Murder Case - Title: The Exchange Diary Murder Case - Author: Yoshiko Takashina - Publisher: Kodansha - Series Number: 370 - Series Number: 372 Thank you for viewing. These are masterpieces by Yoshiko Takashina, from Kodansha's Nakayoshi Comics. They are old manga, so there is some yellowing, but I think the condition is good.