After listening to Arashi talk about how she hasn't made many summer memories this year, Mika begins to brainstorm how to make some. Mika just so happens to hear about the Summer Fes, arranges for a live with Knights, and heads over to the venue, but...
Cheval Live (シュヴァルライブ, shuvuaru raibu) is an event story released on Aug 15th 2018. It could be obtained through point rewards during Summer Sky*Galloping Cheval Live event and is free to read on Basic in ! mode.