On the evening of 3rd as I came back from JR, I saw an LED information indicating an express train for Motomachi-chukagai came at Shakujii-koen Station on Seibu Ikebukuro Line, which made me a sudden getting off there to photograph it.
数分後、列車がやって来た。車両は東京メトロ10000系。
A few minutes later the train, operated by Tokyo Metro 10000 Series, came there.
側面行き先表示。副都心線における「平日急行」と同じ赤文字 Destination indicator at the side the same as weekday express on Fukutoshin Line
同列車の発車シーン A video when the train left from the station
The train operated for the annual Airshow at Inariyama Park and change its kind from rapid express
to express
to stop at Inariyama-koen Station, where stands nearby the park. As usual, the trains toward Tokyo Metro Fukutoshin Line and Tokyu Toyoko Line operate as local, semi express, rapid
, or rapid express
, so I also saw some railfans set their cameras to shoot the train with rare indication.