Osamu Kawaguchi

"Sa... Ka... Ki..."

- Osamu Kawaguchi

Osamu Kawaguchi (川口修) is a character in Online Jack. He is an elementary school student with Doll Syndrome. His teacher is Michiru Tajima.

Online Jack
Osamu is found in a delirious state by his teacher Michiru Tajima and reporter Salvador Aihara at his home. He says a single word, "Sakaki," before passing out. He is rushed to the hospital, but when Michiru and Salvador try to visit him later they find that he's vanished from his hospital room, and that a mysterious message has been scrawled on his wall.