As of October 1, 2004, when 'Tokky Company' and 'Echigo Station Development Company' which had been engaged in the management of station buildings under the jurisdiction of the East Japan Railway Company's Niigata Branch merged (Tokky Company was the merging company), the nickname for the three stations under the Niigata Branch's jurisdiction became 'CoCoLo.'
2004年10月1日に東日本旅客鉄道新潟支社管内の駅ビルを運営する「トッキー」「越後ステーション開発」の2社が合併したのに伴い（存続会社はトッキー）、管内3駅の駅ビルの愛称は「CoCoLo（ココロ）」に改称された。