- Kinzo Ushiromiya - former employer
Captain Kawabata wears a dark green cap, white shirt, and blue vest.
Kawabata is the captain of a high-speed boat that sends the Ushiromiya family to Rokkenjima back and forth. After the murder incident on Rokkenjima, Kawabata held himself partially responsible for being unable to pick up the family sooner, in spite of the typhoon that otherwise prevented him from doing so.
In the trick end, is killed by Ange, thinking he was intenting to kill her.
- His name contains the kanji for "river".
- According to Answer to the Golden Witch, his name is a homage to a long-existing family line in Leaf, a PC game-maker software.
- Kawabata actually appears since EP1, has the captain of the boat that takes the family to Rokkenjima, but it was not until EP4 that he got an actual portrait and a name. Subsequent appearances of him use his actual portrait.