A mysterious Willwear, Ulti-maid, appears in the most recent string of incidents in the city. With capacities and performance far exceeding those of Unit 8's Willwear, it becomes a national 5celebrity. Amid rumors that Unit 8 may soon become obsolete, Kuroki invites Sena to a drinking party, where a most unexpected guest appears...
You're the only stain on my perfect life.
.أنت هو النّقطة السّوداء الوحيدة في حياتي المثاليّة
Du bist der einzige Makel in
meinem perfekten Leben.
Eres la única mancha
en mi vida perfecta.
Eres la única mancha
en mi vida perfecta.
Tu es le seul échec 
de ma vie parfaite.
Sei l'unica macchia nella mia vita perfetta.
Você foi o único a deixar
 uma ferida no passado.