Satou chooses to become Tama, Pochi, and Liz's new master rather than let them return to a life of slavery. He also ends up with the strange sisters Arisa and Lulu, the younger of which seems to have a secret tied to Satou's original world...
and chalked it up to the differences 
between this world and Earth...
...ونسبتُ ذلك للاختلافات بين هذا العالم والأرض
e achei que era culpa da
diferença entre os mundos...