F-Liner : A Train Service operated by 5 private companies ( ani.social )
You get Tobu,
Seibu,
Tokyo Metro,
Tokyu,
And Yokohama Minatomirai Railway running the line. (Though the Minatomirai Line is basically an extension for the Tokyu Toyoko Line)
F-liner provides express service between Yokohama and Tokyo sub center.
https://files.catbox.moe/p9ftwu.jpg
F stands for Fast, for around 30 minutes, you can reach Yokohama from Shibuya.
Not to be mixed up with the F train from NYC.
https://upload.wikimedia.org/wikipedia/commons/7/71/MTA_NYC_Subway_F_train_arriving_at_Avenue_P.JPG
![](https://mbin.grits.dev/media/cache/resolve/entry_thumb/7d/08/7d08cfa54a0aef54fe9d1a68b100cef4703e69645306261b6377a9bfcc60df09.webp)