Elizabeth vanishes, leaving behind a sign that says "Don't look."  Katsura asks Odd Jobs to help look for him, but then he remembers that it's been a year since he last saw Elizabeth.  He never even realized that Elizabeth had left home!  They decide to go to Katsura's home to search for clues.
Yes, he infiltrated Earth 
by pretending to be your pet
Si, se infiltró en la Tierra pretendiendo ser tu mascota
Sim, ele se infiltrou na Terra 
fingindo ser seu animalzinho