Its emergence in the field of transportation between Osaka and Kobe triggered a severe rivalry in competition with Hanshin Electric Railway Co., Ltd., which was already operating urban commuter trains between Osaka and Kobe.
阪神間に参入したことで、以後既に阪神間で都市間連絡電車を営業していた阪神電気鉄道とは激しく争うライバル関係となった。