S - River is one of the wards and places in Midi City.


In Tour mode, Studdo Ban Gyasshu, Spectrenotes, and Tekebakitsusou are located in this ward.


In Season 1, the Battle of Bands occurs between Plasmagica and Criticrista.


  • It is based on a Shinagawa (品川) Ward in Tokyo, Japan.
    • S-Riveris a literal translation of Shinagawa.

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