Occasionally, the divider dividing two domains experiences disruptions, leading to rifts in the spatial fabric. Unless these breaches are addressed, those residing close by may face danger as the two realms blend. Therefore, a tailor named Rem sets out on a worldwide expedition with his faithful companion, a doll modeled after a young girl, to discover and correct these anomalies. The collection consists of two parts: Awai no Mori and Madoi no Tobira.