Right now, my mom and I are walking into the living room after going on a tour around her grand mansion. Although, the building itself is a small duplex without any tenant unlike ours. It's equipped with a large swimming pool and a massive garden full of exotic non-mutated birds.
The truth is that, non-mutated birds are expensive as fuck, and only the rich can afford them. The birds are always reluctant to fly away from their space and into the outside world, due to their fear of getting killed by a mutant. They are also reluctant because, they are always well fed and monitored by an SP (smart pro) robotic torrent that will lock onto any invading mutants or threat and fire powerful rounds of electromagnetic bullets.
Right now, my mom and I have entered the bedroom and locked the door from behind. Immediately I turn back to my mum I drop all the shopping bags onto the side of the room.