This appears to be the final chapter in the romance between "New Angel" Shizuka and schoolmate Keisuke, as Shizuka's just been informed that the family's moving to London and she'll never see the guy again.  Look for plenty of (animated) skin as Shizuka showers and tries to seduce Keisuke, with frequent interruptions from a trio of his buddies, and eventually, a glorious deflowering.