A fifteen year old girl who lives by herself. She became socially withdrawn at age twelve by her own choice because she wanted to play World Fantasy Online as much as possible. After she gave her parents 100 million yen, they left her to her own volition and only return home when they run out of money to spend, causing Yuna to secretly move out into a luxury apartment to hide from them. There, she spends nearly her entire day playing World Fantasy Online and the remainder only eating and sleeping. Yuna has a lazy personality and is socially withdrawn. She possesses a high level of intelligence, being able to make billions of yen from stocks allowing her to live a comfortable life in her home without ever having to leave. After getting transported into a world resembling the VRMMO World Fantasy Online, Yuna actively engages in the world, unlike in the real world, as she sees the current world as a game. Here, she interacts with others and holds a sense of justice that is withheld by her lazy and carefree attitude. She also apparently does not have an accurate view of herself as described by others. (Source: Kuma Kuma Kuma Bear Wikia, edited)