Hello Happy World. The First Page!

Misaki Okusawa is an ordinary high school girl who attends Hanasakigawa Girls' High School. However, Kokoro Tsurumaki, who is known to be the most eccentric girl in school, became Interested in Misaki because of the kigurumi she wore at her part-time job in the shopping district, and she became involved in her activities to make the world smile.