Description:

Popular for being filled with bugs, the virtual-reality game New Communicate Online (a.k.a. Nekomimi Neko Offline). A die-hard fan of the game, Sagara Souma, is sent to the game world from the power of a mysterious device. Though surprised by the sudden turn of events, Souma conveniently knows the laws of the world. Mastering every bug, using the game’s logic against it, he is soon known as “Maverick Swordsman Souma.”

Description:

The story begins with Yggdrasil, a popular online game which is quietly shut down one day. However, the protagonist Momonga decides to not log out. Momonga is then transformed into the image of a skeleton as "the most powerful wizard." The world continues to change, with non-player characters (NPCs) begining to feel emotion. Having no parents, friends, or place in society, this ordinary young man Momonga then strives to take over the new world the game has become. (Source: ANN)