Muchako's origin began with the "Muchatanuki Delusion Materialization Project," which was essentially a plan to gender-bend the creator, "Tanuki." With the help of Muchatanuki's Yukkuri Reimu, Muchako was created based on the concept of a timid, high-strung girl who never leaves her room. However, please keep in mind that she is strictly the creator's idealized self-image and does not appear in the actual videos. She has unkempt, long straight brown hair, swirly sanpaku eyes, and dark circles under them. Her chest is massive (around 95cm...?). Her thighs are incredible (thick and fleshy). She wears an oversized T-shirt with "Mucha" written on it, a hoodie over it, short shorts, and knee-high socks. She wears a tanuki sleep mask, has a tail, and wears black nail polish. She is a total loner type. When talking to people, she constantly looks down to the left, avoids eye contact, and speaks while breaking out in a cold sweat. Her voice is quite small and broken. She basically only takes showers, and when she doesn't go out, she only bathes about once every two days. She is an extreme shut-in who only goes out to buy food at the convenience store. When receiving a massage (in a suggestive sense), she makes voiced, raspy sounds (adding voiced marks to characters that don't usually have them, like "A-gh," "O-gh," or "I-gh").