Aesthetic and fashion style based around nostalgia for the Heisei period, primarily featuring elements associated with '90s and 2000s Japanese childhood, especially that of young girls and the clothing that was marketed to them during the time. It is closely related to Yume Kawaii and Y2K fashion. In the West, it is often referred to as "cutecore".
For specifically adults wearing children's clothing, see jojifuku. (Do keep in mind, however, that the 女児服 tag is often used for both concepts on sites like Pixiv.)
