This Side of Paradise - S1.E4

It was Arthur who appeared before Eiji who was visiting Meredith's medical clinic after being asked by Ash. However, seeing Griffin coming out of the back room of the medical clinic, Abraham becomes confused all of a sudden and shoots Griffin. Eiji presumes that because Griffin called Abraham "Banana Fish", he assumed that it was about him, but he is told by Ibé to return to Japan.