Chisao Oyama (Chisao) Chisao originally appeared in EXE/BN 3, and was introduced in episode 54 of the anime. Chisao is Dekao's younger brother, and he lives in the city of Amerope. Chisao is currently too young to own a Net Navi, but he long desires for one. He is a very talented Net Battler, he even succeeded in making Gutsman perform a Program Advance! Chisao sticks around in Axess, while Dekao is in Jawaii. ^_^ This little kid is so very adorable!

Chisao is so very cute! He ends all of his sentances with '-chu!"
This character description was made for episodes that I have seen so far. It may be updated as more episodes become available.