Kuma Kuma Kuma Bear

Yuna is a fifteen-year-old shut-in who has been playing the VRMMO World Fantasy Online for almost a year. One day, she receives a bear costume from the game's administrators. To her surprise, the outfit is incredibly powerful and has amazing stats and effects. When she puts it on, she finds herself transported to another in-game world and unable to log out.

Yuna soon meets Fina, a girl who she rescues from wild wolves. Fina guides her to the city of Crimonia. Yuna stands out in her eccentric bear attire, and her boosted fighting prowess earns her the nickname "Bloody Bear." Despite this, Yuna decides to take on the role of an adventurer and enjoy her new world.