The last two episodes have toned down the serious story elements, perhaps to compensate for the serious episode six. So the comedy levels have been increased dramatically, and a new girl joins the cast.
But firstly is the weekly highlight of Kore wa Zombie desu ka?, and that is the voices for Eucliwood. Episode seven gave us Yuki Matsuoka, voice of Osaka and Tsuruya, and thus bringing the number of Azumanga Daioh seiyuu voicing Yuu to two (Tomoko Kaneda voiced in episode 2).