Thanks to Aoi, the S.A class has been disbanded in order to force Kei to go to London. So that Hikari and his friends can remain together, Kei proposes a challenge to Hikari that if she wins, he will bring back the S.A. However, Hikari learns too late what Kei has done in order to bring back the S.A - he has already left for London for her sake.
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