After the canaries moved into the Cave, the various flora and fauna in the Cave that had been previously neglected and left to die off naturally now had devoted caretakers.
The black and white balls, which Dong Tianyu had been keeping as pets, became even more beloved by the canaries after they moved in.
After getting Dong Tianyu's permission, the canaries moved the black and white balls that had been roaming freely on the grass into the "Riding the Waves" for nurturing.
With the addition of the black and white balls, the original black balls could finally take a breather and escape the relentless torment of the canaries.
Back when "Riding the Waves" was still in the outside world, the only pet on board was the black balls, so the twelve canaries had to schedule their playtimes.
