What is a Japanese doll named Danbo?

Danbo, the abbreviation of Danboard, is the cartoonist in the Japanese Mihura Hayakasaka series of cartoons "Four Leaves Sister". (Foreign name is Danbo)

Danbo, a poor cardboard box villain, is the work of Singaporean artist Anton Tang.

Round eyes and triangular mouth always show innocent expressions, which makes people feel soft! Danbo is a simple and kind little guy. In his pure fantasy world, he always reveals the purest and cutest touching atmosphere. From Danbo, I saw a child who, apart from being naive, vaguely revealed alarmist sadness.