[Machine Translation] Commemorating the 55th anniversary of the magazine serialization! Manga fans' long-awaited book version! Momoko Tanteicho", a girls' manga that gained popularity in the early 1950s, is being published for the first time in book form, 55 years after its serialization in a magazine! Momoko Tanteicho" was serialized in "Ribon" (Shueisha) for two years from 1958 to 1959, and is still supported by many manga readers as a masterpiece of girls' detective manga. It was highly praised by the late manga critic Yoshihiro Yonezawa, and has long been desired to be published in book form. With the cooperation of the Yoshihiro Yonezawa Memorial Library, we are pleased to announce the publication of all 24 episodes plus two read-aloud stories in upper and lower volumes. Most of the manuscripts are still in relatively good condition, and we aim to make the best use of them. The story is a suspenseful action drama in which Momoko, Kijiko, and Wanko, three good friends of Ribon Tanteidan, encounter a bizarre case involving monsters and monstrous creatures such as ogres, sea monsters, kappa, and wolf boys, and solve it with clever reasoning and courageous action. The fashion depicted by Mitsuaki Suzuki, including heart-shaped hats, mini-skirts, and ribbons adorning the chest, is timeless and modern, and the dignified, cute, and beautiful girl characters are still favored by many readers today.