"DANCER GIRL OF IZU" is camouflaged as a story spoken by a single viewpoint "I" (student). But actually, it contains multiple viewpoints. This is a special technique.
　In order to distinguish this multiple viewpoints from "perspective of omniscience", we should call it "the polyphonic usage of narration". 
　The true face of Eikichi repeating selfish acts is hidden from the level of superficial narration. Under the story of "I" who experienced the romantic pale love and healed his orphan complex, the aspect of selfish caractor of "I" is represented. And below that, I would insist, the real face of Eikichi is hidden. It was not "I" who is truely selfish and thoughtless but Eikichi, who controlled the act of "I".
　The act of narrations which lays in deeper levels of the story, and which betrays the surface story is exactly an act of the polyphonic voice part.