As usual Ruri spends her days having lovey-dovey sex with the gals but one day when they are alone she promises Imaizumi a date she loves spending time with Imaizumi and as soon as she returns to the apartment they begin having passionate sex their bodies melting together feeling the love Ruri makes love to him again and again but what about the other gals who notice the two of them having sex the episode focuses on Ruri's one-on-one romance with Imaizumi while the other gyarus sense the special bond leading to a mix of jealousy and eventual group acceptance