The Rain and Willow shop is an antique store that is owned by a certain elderly man whose grandson assists him with the management. The grandfather is a man of business, while the grandson is a calm, quiet boy with soft unfocused eyes who has the ability to see things that are "not of this world".

Uryuudou Yumebanashi was initially serialized in Nemuki, but moved to Nemuki+ after the magazine went defunct.