While exploring a facility, the girls are surprised by a large construction robot which is oblivious to their presence.
They then discover an aquarium containing a single fish guarded by a robotic caretaker. It explains that the facility was once used for fish farming. The robot allows the girls to swim in one of the empty aquarium tanks, although Chito almost drowns. Later, the large construction robot begins dismantling the facility apparently due to a bug in its programming. This leads Chito to engage the caretaker robot in a discussion about what it means to be alive. Fearing for the fish's life, the girls save it by destroying the construction robot using explosives.