Meanwhile, on ordinary days it's considered illegal to ride on a turned-back train between Juso Station and Umeda Station (since the return-trip of the section is not calculated in the fare); however, the day on which the Naniwa Yodogawa Fireworks Display (formerly called Heisei Yodogawa Fireworks Display) is celebrated, the round trip to Umeda Station is exceptionally admitted because Juso Station becomes enormously crowded.
なお、十三～梅田間の折り返し乗車は通常では不正乗車（この区間は運賃計算に含まないため）であるが、なにわ淀川花火大会（旧・平成淀川花火大会）の際には十三駅が大変混雑するため、梅田までの折り返し乗車を特例で認めている。