This manga features four narratives: - Houmonsha / The Visitor A prequel to Thomas Heart that tells the story of Oscar's earlier years. Due to a series of both major and minor issues that have accumulated over time, Oscar's parents are facing a breakdown in their marriage. One day, following an argument that Oscar thinks will conclude like all the previous ones, his father makes a decision that is irreversible. Now Oscar and his father must confront the aftermath. - Castle A boy pondered on how to construct his castle. - Egg Stand, which is translated into French as ''Le coquetier'' in Moto Hagio Anthologie De l'humain - Angel Mimic