Rumi is beautiful, as Hobin says that Rumi has success on NewTube because of her appearance. She has curly orange hair with see through bangs, her eyes are brown with a downturned shape and long eyelashes, and she has thick eyebrows. She's usually wearing light makeup which consists of red lipstick, slight blush, and orange-pink eyeshadow.

Much like Bomi, she has exaggerated body proportions, having a big chest, tiny waist and wide hips.

Rumi has a very extroverted and bubbly personality, often being the first to approach others. She generally seems to have an optimistic and persistent attitude that others can find annoying at times.

Rumi is an opportunistic person, at the beginning of the webtoon she often tried to collaborate with anyone who was popular at the moment so she could earn more views and money. Despite being uninterested in him at first, she even tried to persuade Hobin once he had gained a following, but he avoided her until he was in serious need of money.

In Episode 27, it's shown that Rumi lives in similar conditions to Hobin and actually lies to her viewers about her wealth so they don't look down on her.

People often view her only by her materialistic pretty girl persona, but Rumi is shown to be smarter than that. She was quick to recognize that Han Gyeoul is really good at manipulating people. She reads people well and isn't as naive as portrayed to seem. Although she doesn't often show it, she is very kind-hearted beneath her mask of arrogance and the superficial personality she uses. She felt bad after calling Gyeoul out and wanted to apologize to her. She's also not the type of person to hold grudges and was still nice to Gyeoul and Wangguk despite what they did to her.

Has a nasal voice (according to Hobin)

Rumi works out a lot so she can eat all the food she wants and still stay in shape.

Her second channel Wangru CoupleTV has 900K subscribers.

Her original channel name is "Yeowang", which is a combination of their names (Yeo Rumi and Han Wangguk.) This translates to "Queen" in Korean.

Her age: 19 years old