Boy x girl x tsukumogami. After a long time, the object finally has a "heart", which is the birth of the tsukumogami. The young man, Kihei Ma, hates the tsukumogami because they took away important people. The girl, Nagatsuki Botan, lives with six tsukumogami and loves them like "family". The two met in Kyoto, the capital of a thousand years, and lived together. Under the eaves with a difficult future, the three of them started a staggered life together. People and things. The story of the tsukumogami of bond and love.