久宝寺から新大阪までの路線の建設には非常に長い時間がかかりました。なぜなら、当初は建設予定ではなかったいくつかの建物が線路沿いに建てられ、最終的にそれらを撤去するのに多くの訴訟が必要だったからです。このサービスをなにわ筋線(現在建設中)まで延長する計画があり、サービスが天王寺駅まで届きます。(It took a very long time to build the line from Kyuhoji to Shin-Osaka because there were a couple of buildings built along the right of way that were not supposed to built in the first place and it took a lot of court cases to finally remove them. There are plans to extend this service through the Naniwasuji Line (now under construction) so service goes all the way to Tennoji Station.)