Mega Man Battle Network Legacy Collection Vol. 1

Mega Man Battle Network is set in an ambiguous year in the 21st century ("20XX AD") in an alternate reality to the original Mega Man series.[1] Within the world of Battle Network, the Net has become humanity's primary means of communication, commerce, and even crime. Users are able to "jack in" to the Net and other computerized devices, and explore their various aspects using Digital people called "NetNavis (Network Navigators)" as if they were physical locations. The Net and the inner workings of computers are displayed as a virtual world with which computer programs of all varieties, as personified in a humanoid form, can interact. Users often do so by accessing their NetNavis via a "PET (PErsonal information Terminal)" device.

The plot of Mega Man Battle Network follows one such pair, Lan Hikari and his NetNavi MegaMan.EXE. Lan is a 11-year-old fifth grader in the town of ACDC. His father, Dr. Yuichiro Hikari, is one of the world's top scientists and NetNavi researchers. Most of the series (barring spin-offs) involve Lan Hikari and MegaMan.EXE stopping an evil crime syndicate from taking over the world and the Net; "WWW" (said out loud as "World Three") in the first, third, and sixth games, Gospel in the second game, and Nebula in the fourth and fifth games.