Banjiui Bimil-ilgi
English title: Banzi's Secret Diary
Japanese title: 반지의 비밀일기
Type: TV
Source: Unknown
Episodes: 52
Status: Finished Airing
Aired: Jul 13, 2017 to ?
Broadcast: Unknown
Duration: 11 min per ep
Rating: PG - Children
Genres: Comedy
Demographics: Kids

Banzi's Secret Diary is a Korean animated series focused on the life experiences of a girl named Banzi, who owns a diary that she writes in regularly, and her friends Eungsim and Namnam. 

(Source: TV Tropes)