Every day is a chance to discover more things to love about nukos, curious part-cat part-human creatures that evolved from ordinary cats. That's laid-back part-timer Yuya's experience after adopting two nukos named Kei and Sasame. Their days are only getting busier, now that they have Yuya's neighbor and best friend Yamato, Kei's older twin sister Kana, and a whole host of friends in the local shopping district to contend with... not to mention a mysterious new figure who somehow knows Yuya! Speaking of mysterious figures, is there more to Yuya than we thought...?!