AIZAWA MIYU and KITAOKA KARIN make their first appearance together as two former girlfriends reunited at a school reunion five years later. Old memories of secret sex on a rooftop stairwell and at a cram school return as the drinks flow. They refuse to let him catch the last train, take him to a shared love-hotel room, and launch into a reverse threesome. Remembering every weak spot, they compete for his cock, suggest going without condoms, and demand to know which of them he wants to creampie while draining him until morning.