In a quiet, unassuming corner, a group of shy and anxious characters have gathered, each searching for a place where they truly belong. The setting is a peaceful, cozy space removed from the bustle of the wider world, a sanctuary for those who feel most comfortable in a small, tucked-away spot. The central cast includes Shirokuma, a polar bear who suffers from the cold and prefers warm places; Penguin, a small bird who lacks confidence in his own identity; Tonkatsu, a leftover breaded pork cutlet feeling lonely and unwanted; Neko, a timid cat who is reserved around others; and Tokage, a lizard who secretly pretends to be a dinosaur. Their daily lives are filled with simple, gentle adventures, such as preparing meals together, decorating their shared home, and celebrating seasonal events.

The series is structured around short, self-contained stories rather than a single complex plot, emphasizing camaraderie, reassurance, and the quiet joy of finding acceptance. A notable narrative arc introduces Mogura, a shy mole who lives in a burrow underground where he mines for crystals and diamonds. Curious about the noise from the world above, he emerges to meet the Sumikkos. Despite feeling self-conscious because he likes cute and traditionally girly things, the Sumikkos warmly accept him for who he is. In one episode, they help tidy his underground home, an act of kindness that makes Mogura very happy and solidifies his place among them. Through these gentle interactions, the series explores themes of self-acceptance and the comfort of finding a safe place, all wrapped in a calming and fantastical atmosphere where even ordinary objects can take on a life of their own. The anime is directed by Gaku Kinoshita and produced by Fanworks.