Yuirin got spanking by Hiyoko-mame,again.
She was punished in "Yuirin no ohnedari daisakusen- Real oshiri penpen taiketsu 3"(lis. Yuirin's special Operation for her desire;Real spanking competition Part 3).
In this episode,they played "Cinderellablade 2" that is forthcoming Pachinko game(machine) and famous for "Oshiri pen pen(spanking) time" and loser had to be punished by a spanking indeed.
cf. First episode is here,
and return match is here,