Chisao

Chisao is a character from the MegaMan Battle network series. He is Dex's brother. He doesn't have a NetNavi. he speaks very childishly and believes that his brother is the best NetOp in the world.

MegaMan Battle Network 3
He appears in ACDC Town, looking for Dex arriving from Netopia. He runs away crying after Lan defeats Dex in a Netbattle. He later goes with the Lan's class to Yoka and visits the zoo. Chisao is then kidnapped by a vulture and trapped on a huge attanae. He is saved when all the animals go back to their cages.

MegaMan Battle Network 4
He appears shortly before the battle between Lan and dex. He pretends to be kidnapped and makes Lan and MegaMan.EXE go all over the net looking for him. Chisao tries to make Lan late for the contest and miss his match.

MegaMan NT Warrior
He still idolizes Dex but he is a supposed genius and can operate GutsMan.EXE better than Des. He can also preform the Program Advance. Chisao is tricked into believing that the curry shop run by the ex-WWW is a base for aliens and is given NoodleMan.EXE to destroy it but they convince them of their identities and all the conflicts are rsolved in the end.