Gender: Male Breed: Golden Retriever Unlike the violent Samsaegi, he has a relatively gentle personality. Although he is often seen being bullied by Samsaegi, they don't actually have a bad relationship and seem to get along well while bickering.

Gender: Male Breed: Maltese He lives next door to Riri and speaks like a middle-aged man. Poppy's family enters and exits through a hole in Ju-in's house that is covered by a poster, which they peel off and reattach. The content of the poster changes from time to time.

Gender: Male Breed: Shih Tzu A dog close to Riri. He has a white coat with black ears and tail. He was abandoned by a cruel former owner he trusted and became a stray, but he was found and adopted by a kind-hearted woman and started a new life.

Gender: Female Breed: Korean Shorthair A calico cat whose name, Samsaegi, comes from her appearance. Basically, if something isn't to her liking, she has the temperament of a "bully cat" who resorts to irritation, biting, punching, and even swearing if it's serious. However, when those around her like Ju-in or Riri are struggling, she is the first to step up, worry, and help. In truth, she has a strong tsundere streak and wants her owner's attention and love more than anyone else. She is close with Godongi.

Gender: Male Breed: Korean Shorthair A cat with brown and white fur. Just like Samsaegi, his name comes from his color (Godong-saek means dark brown). He lives in the same housing complex as Ju-in with an owner who wears a brown wool hat. He was formerly a stray cat. Perhaps because of that, he shows an excessive level of dependence on his owner. Unlike Samsaegi, his personality is very gentle. He is close with Samsaegi.

Gender: Female Species: Rabbit Has a chic personality.

Gender: Female The owner and butler raising Riri and Samsaegi. She is teased for being bald because she has no hair. She is close with Godongi's owner.

Gender: Male Godongi's owner. He wears a wool hat the same color as his cat. He is close with Woo Ju-in.

Gender: Female Woo Ju-in's mother, appearing with permed hair. Samsaegi likes her even more than Ju-in because she gives her many snacks.

Gender: Unknown Breed: Afghan Hound In contrast to the misconception that Afghan Hounds are the least intelligent among dogs, he is the most eloquent of the group. He even uses a smartphone as well as a human.