Misha is a beautiful, devoted catgirl whose family is deeply in debt.
She decides to sell herself as a familiar to a witch. However, having a humanoid as a familiar is illegal. This is because the contract that binds them to their witch makes them fall hopelessly in love with them, forever.
There's only one store willing to sell her: a black market shop named "WitchMatching". But the only customers willing to break the law and shop there are the four calamitous male witches the city lives in fear of.
What will become of Misha and her family? Can she find happiness, find love, even as a slave?