After December 2005, JR West began introducing electric train series 321, where they replaced train series 201 and 205, including all train sets of twenty-eight cars of type 205 which had already been transferred to the Hanwa Line (Hineno Electric Train Depot).
2005年12月からJR西日本321系電車の投入が始まって国鉄201系電車・国鉄205系電車の置換えが開始され、すでに205系は全編成28両が阪和線（日根野電車区）に転出した。