Mamoru Urakawa

Mamoru (full name Mamoru Urakawa) is a character from Mega Man Battle Network 3 who, like Hub Hikari, has the heart condition known as "HBD". He has been hospitalized since he was three years old, and remarkably survives what most people would not.

Personality
Mamoru tends to be secretive for the most part and for this reason not much is known about him. However, despite his shy nature, he is actually a friendly individual who can make friends with people in his own age group effortlessly; his friendship with Lan is a noteworthy example in this regard.

Mamoru, in many aspects, is a more-than-meets-the-eye character in the series. The fact that he is readily analyzed as physically defenseless on the account of being in a wheelchair, since his diagnosis with HBD, is countered by his status as the Undernet's administrator.

Game History
When Mamoru meets Lan Hikari on the beach for the second time, he has an HBD attack. Seeing this, Lan re-enters the Seaside Hospital and finds Mamoru's doctor, taking him and a nurse to assist Mamoru. This attack landed Mamoru in the emergency room, but he did not want to have surgery; his nurse tells Lan that he has undergone surgery three times, all of which were unsuccessful. Mamoru has no hope that a fourth surgery can solve his problem, even though it is a new kind of surgery for HBD; upon hearing this, Lan encourages Mamoru by giving him the rare Battle Chip he wanted, IceBall M.

Three days later, Mamoru's condition got worse and he was sent to the emergency room for his fourth surgery. However, it was interrupted three hours later by Anetta, who disguised as a nurse used her NetNavi PlantMan to make the growth function of the Tree of Life malfunction and create vines throughout the hospital to destroy the place and find a TetraCode for Wily. After MegaMan defeats PlantMan, the Tree of Life returns to normal and Mamoru's surgery is successful.

When Lan comes across the sinister source of the Undernet at a hidden elevator located past the hot spring at the Ura Inn, it is revealed that Mamoru is the Undernet's administrator, much to Lan's bewilderment. Mamoru then explains his father's involvement in the Undernet's creation, and the "Giga-Freeze" program, which is capable of subduing Alpha. Not long after this, the SciLab is infiltrated by none other DrillMan.EXE, who after stealing Alpha therein, escapes via a distorted portal he himself had just created into the Undernet.

Mamoru, along with Mayl, Yai, Dex, Tora and Chaud, later appears on the Seaside Beach to comfort Lan in the wake of MegaMan's supposed death, thanking Lan for giving him courage to face his disability.

Mamoru heads home after this, but it is unknown if he was cured or just feels better. No information is revealed regarding Mamoru's future, although a scene in the end credits shows Lan giving Mamoru a PET, suggesting that he was well enough to NetBattle.

Etymology
Mamoru is Japanese for "protect", and Urakawa literally means "inlet river". His surname is Ura in Japan, which can mean "reverse" or "backwards". Mamoru's full name in English literally means "protect inlet river", which is actually quite accurate given his status as the administrator of the Undernet and his attempts to keep it as a secret even among his friends, notably Lan, who eventually learns of its existance anyway.

Urakawa is also a town in Hidaka Subprefecture, Hokkaido Prefecture, Japan.