[After-Party] Hibiki Riona, eager to treat, gets outpaid by Suisei-chan sneaking off to the restroom

At the after-party dinner for a song project, Riona was all fired up to treat her guests Suisei-senpai, Kanade-senpai, and Nico. But just as she pulled out her card and got carried away, Suisei-senpai slipped off pretending to go to the restroom and paid the bill first, leaving Riona unable to treat them.

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