He rarely speaks full sentences, mostly uttering small sounds like "Wa!", "Ya!", or "Fu!". However, he isn't completely mute. When Hachiware called "Charumera" noodles "Charimera," he tried to correct him by saying "Charu...", and he muttered "Bi...tter" when drinking coffee. Although he is a crybaby, he has high combat ability, even fighting off Chimeras with his bare hands. Furthermore, when he or Hachiware face a crisis, he sometimes acts with sudden agility and wit as if he has awakened. He lives in a house he won in a "Muchau-ma Yogurt" sweepstakes. He has a strong streak of luck, having also won a sukiyaki set, a cookie tin, and soup stock from various campaigns. He recently failed the Weeding Certification exam.

His charm point is his thick, long blue tail. Among the three main characters, he is the only one who speaks in normal sentences and often takes the lead in communicating. He is a social, curious optimist. He occasionally displays cat-like behaviors, such as coughing up hairballs, leaving his tongue out unconsciously, or showing a Flehmen response when smelling flowers. He misreads "Charumera" as "Charimera." He is quite skilled at cooking, serving dishes like ketchup pasta. He is very knowledgeable, knowing about mammoths and mermaids from a "Legendary Creatures Encyclopedia." He is a loyal friend who helps Chiikawa whenever he is in trouble. He lives alone in a cave. His pajamas are blue. Since his cave has no door, bugs frequently enter, and he drives them away with a sasumata pole. He holds a Level 5 Weeding Certification. In a pinch, he often shouts "Let it work out!" and acts on momentum to solve the problem. He took the Weeding exam with Chiikawa; Hachiware passed, but Chiikawa did not. He mentioned that he couldn't eat or sleep that night because his heart was so heavy for his friend.

He is always high-energy and acts eccentrically. While he can be a troublemaker, he is also a caring friend who helps and supports Chiikawa and Hachiware in times of need. He is sharp-witted, remaining unfazed by Momonga's provocations and threats, acting as if he sees through Momonga's true nature. He can play the guitar. He does not speak words, instead emitting strange cries like "Ura!", "Yaha!", "Puruya!", "Huun?", "Haa?", "Rurururu", and "Urararara!". His pajamas are yellow. It was revealed that he passed the Level 2 Weeding Certification at the same time Chiikawa finally passed Level 5.