"Oh? Oh!" Mitsue Hiragi is a very popular picture book writer such as "Kororin Poi!" (HOLP Publishing). The "Aka-chan is happy" series not only has the impact of the unique cover picture, but also the gestures that can be comfortably moved even by Aka-chan's small fingers and the fun of its movements, and has sold a total of 27 titles in the series (as of December 2024) since its release in 2016 (as of December 2024) with a total of 3 million copies! It has become a new standard for picture books for babies that parents and children can enjoy. In the picture book navigation, the four popular books in the series "O? "Kororin Pa!" Produced "Pitanko!" as "Picture Book Navi Original Goods". Taking advantage of the humorous atmosphere of picture books and the excitement of moving the shikake, a number of surprisingly adorable products were born. At first glance, the picture book "Oh? The front of the cover is your face, and if you move your finger to your mouth...... My eyes are rolling! With the unique atmosphere of such a picture book, what a cute baby sock! When you wear it, it is designed to make eye contact with your baby. It seems ♪ that you can see the baby staring at her feet a little strangely. I matched the cover with red for "Okao" and pink for the expression of "Good night". Small little baby socks, you will surely be pleased if you give them with a picture book as a celebration of childbirth.