Unlike his talkative best friend Hachiware, Chiikawa communicates only through exclamations and cries like "Waa...", "Fueng...", "Hieeek...", and "Hwang..". Instead of speaking, he vividly conveys all emotions through rich facial expressions, such as drooping ears or tearing up. He owns his own decent house, having won a housing subscription for a yogurt giveaway that had notoriously low odds. On the other hand, he lacks academic talent and has cried after failing the Level 5 Weeding Certification exam he prepared for with Hachiware. He sleeps hugging a teddy bear and treasures his pink bear pochette. He has white fur. Species: Hamster. Female. Best friends with Usagi and Hachiware. The only words she can say besides exclamations are "No," "Like," and "No-no" (she only uses "No" when she truly hates something). She enjoys the happiness food brings. Innocent. "No" is the harshest insult Chiikawa can give (equivalent to "Drop dead!" or "Damn it!").

Unlike Usagi, who cannot speak, and Chiikawa, who rarely does, Hachiware is the only one of the trio who is fluent in speech. He perfectly understands Chiikawa's cries and Usagi's vocalizations and translates them for other friends. He lives alone in a cave where monsters might appear. He is poor enough to use a cracked cup and a broken bowl as a table, but he is the most romantic and self-sufficient, saving money to buy a camera and a guitar. No matter the situation, he encourages his friends with his characteristic bright personality and positive words. When he was the only one to pass a certification exam taken with Chiikawa, he secretly shed tears out of consideration, fearing the failed Chiikawa would be sad. He has a blue marking on his head like a middle part. The rest of his fur is white. Species: Tuxedo Cat. Male. Best friends with Chiikawa and Usagi. Enjoys the happiness food brings.

Extremely eccentric and follows her own path, acting as a mood maker who suddenly surprises or pranks Chiikawa and Hachiware. Unlike Chiikawa or Hachiware, it is completely unknown where she eats or sleeps. She holds a 'Level 3 Weeding Certification,' the highest among the trio, and is smart enough to self-study a foreign language (Goblin) to act as an interpreter. She cannot speak normally. Instead, she uses sounds like "Uwaa" (Delicious), "Purururu" (Excited), "Yaha!", "Haa?" (Why?/What?), "Jururi" (Slurp/Hungry), "Urararara!!" (Wow! Feels good!), "Hoa?!" (Gasp?!), and "Ulla." She has yellow fur. She handles spicy food better than her friends. Resembles a yellow rabbit. She helps sincerely when needed. Female. Best friends with Chiikawa and Hachiware (admires the high-achieving Rakko). Eats anything if it's food. Has a great sense of rhythm.

Cute in appearance but selfish, often stealing others' food. She constantly demands that those around her "Find me cute!" and is shameless. She has very high self-esteem. Female. Species: Flying Squirrel.

Ranked 1st in the whole school. He acts as a spiritual pillar, taking in Chiikawa and Hachiware—who want to become smarter—as his disciples, giving them special training and passing on study tips. He seems like a cold top student who never cries, but he actually loves sweet desserts and cafes. When he takes a bite of dessert, his usual stern expression crumbles and his eyes sparkle, showing an unexpected cuteness. He coolly buys delicious meals and desserts for his disciples. He has yellow fur. Species: Sea Otter. Male. Always ends his sentences with a formal or declarative tone. Does not wear glasses.

A famous figure at school who, despite being a middle schooler, has already self-studied and earned certifications for Word Processor, Kanji Proficiency, and Barista. She is diligent, organizing her incorrect answer notes all night. She gets happy when given snacks. Female. Close with Kurimanju. Species: Shisa.

He drinks hot barley tea, Job's tears tea, or Solomon's seal tea from a thermal tumbler. After every sip, he closes his eyes and lets out a deep, sigh-like exclamation—"Haaa—"—making people mistake him for a senior faculty member from a distance. He never eats cafeteria snacks plainly. He creates his own food combinations, such as microwaving a sausage bread for exactly 23 seconds and topping it with shredded string cheese. He savors his food with a very serious and solemn expression. He is a tsundere who looks after others without a word. Everyone wonders if he's a delinquent, but surprisingly, he maintains upper-middle-class grades. When exams are over, he is the first to shoulder his bag and coolly walk out the school gates. Male. Close with Shisa. Species: Otter.