The series follows the antics of tenth-grade student Eisaku Yazawa who wants to become a bousouzoku, a motorcycle gang member.

The story centers on 44 yōkai — Japanese monsters — who make humans' socks loose.

A series oriented to three-year-old children, showing the everydays of 9 characters, each of them having a distinct feature. Children will recognize characters and situations from their own life. Sometimes through conflicts, sometimes through encouragement, they will find everyone's place in the world. The story conveys messages such as "Nobody's alone", "It's good to be different" and the importance of being connected with others, in a fun way.

[Source: official website via MAL]