Kar-Kura-Kat

Kar-Kura-Kat is a candy brand. Its name is a direct reference to its real-life equivalent, Kit Kat.
The name is additionally a clear reference to the city name, Karakura.

Its existence is evidenced by two of the possible messages that appear after doing /feed or /eat.

"You find a pack of Kar-Kura-Kat in your pocket. You enjoy their chocolate and wafer flavor."
"You take out a pack of matcha Kar-Kura-Kat from your pocket. You indulge in its green tea flavor and crunchy texture."