Animenewsnetwork - One piece has been missing since the first episode: both the last girl to fill out the harem and the person who would take on the crucial role of doing the music for Blessing Software. The opener and episode 0 have always indicated this to be the same person: Michiru, who also fills the role of the sexy female cousin whom the male protagonist has regularly played with since they were little kids. Her formal introduction in this episode reveals that the connection between her and Aki is even stronger than normal, though: they were even born on the same day in the same hospital, and on top of that she apparently has a long-standing habit of winding up at Aki's house whenever she gets fed up with her Dad and runs away from home. Perhaps needless to say, that throws Eriri (who has always seemed to relish the “childhood friend” role) for a loop. Though we don't see it this episode, Utaha will also doubtless be thrown off when she sees that Michiru easily has a figure that is the rival of hers.