The manager of Korenande Shokai, commonly referred to as "Jay-san" or "Shacho" (Boss). A super-positive, free-spirited man who dearly loves music, fun stories, and junk. He possesses a very unique set of values that are incomprehensible to ordinary people. He handles all the procurement for the shop himself... however, his selection criteria are heavily biased toward what he likes or what fits his sense of style at the moment. Furthermore, if he likes something, he'll put it in the shop regardless of how old or broken it is, which is the primary reason no customers come to the store. He loves to imagine things and often retreats into his own world. There are also scenes where he indulges in wild delusions (e.g., despite the shop being a total failure, he dreams of global expansion and arbitrarily composes theme songs for the countries where he imagines opening branches). He is childish in both good and bad ways; while he might be a leader who can pull others along, he is not suited to be a business owner. He is skilled with his hands and can repair most junk. He even makes his own stamps (though he is bad at using a typewriter). He is good at ball-balancing and once plotted to compete in the Olympics with it (which, of course, ended in failure as it is not an official event). In song segments, he mainly handles vocals, but depending on the song, he also plays string instruments like the shamisen or ukulele, or percussion like bongos and cajons.

The only clerk working at Korenande Shokai and a master pianist. Despite being the sole employee: - He oversleeps and arrives late despite living in the neighborhood (5 minutes by walking, 2 minutes by running). - He knows almost nothing about the shop's products and makes up nonsense explanations to fake it. - He plays games, eats, or naps while on the clock. ...and so on. His work attitude is so poor that he couldn't argue even if he were honestly told he was "fired." However, given the current situation where he is the only employee and the fact that the root cause is the shop itself where not a single customer visits, he is warned and scolded but never actually fired (though he has had his pay cut several times as punishment). He doesn't slack off all the time; being a neat freak, he often cleans and neatly arranges the shop's products. Depending on his mood, he can work quite diligently. He has an extremely negative personality, and his opinions and ways of thinking are completely incompatible with the polar-opposite positive Jay. Consequently, they tend to get into light arguments every single time. However, they aren't on bad terms; rather, they seem to be two of a kind, such as both being prone to getting carried away easily. In song segments, he mainly plays the piano, but occasionally handles vocals and even has his own dedicated theme song.

An elementary school girl who lives in the neighborhood of Korenande Shokai. She is full of curiosity and loves fun or interesting things. She has an excellent sense of rhythm and can play the drums. Perhaps due to her mother's good upbringing, it can be stated with certainty that she is more reliable than Buruburu. She loves rabbits and treasures a stuffed animal named "Usako-chan." She also owns many small items featuring rabbit motifs (and apparently has many piggy banks as well). Like a typical child, she aims to be an idol and participates in auditions. On the other hand, she seems to view being an idol as "something you can only be until you become an adult," and she apparently plans to "retire as an idol and take another job once she grows up." In song segments, perhaps because of her idol aspirations, she is the primary vocalist after Jay.

A delivery person for a service called "Hemoglo-bin." He is serious about his duties, but like the other three, he loves fun things and often wants to join in. The gap between his "on" and "off" modes is quite noticeable. He occasionally makes sharp-tongued remarks toward Buruburu. He has a greedy side, openly declaring that "anything is fine as long as I can get it for free."

The straight man (tsukkomi) role.