The four girls, who are cat-human hybrids, live in a quiet animal shelter after being rescued.
Each has a distinct personality:
Mika (orange hoodie, playful troublemaker, band-aid on cheek, tongue-out mischief).
Sayo (black-haired, quiet, serious, the "responsible older sister" type).
Nari (ash-blonde, quick-tempered, easily annoyed, but secretly caring).
Yua (cream-haired, shy, hesitant, tends to follow the others but has a sharp temper when pushed).
A kind couple visits the shelter, unable to resist the four unique girls. They adopt them together.