Shiunji-ke no Kodomotachi

The tightly-knit Shiunji family, known for its affluence and social standing, finds its foundation shaken by a startling revelation on the eve of their youngest sister's fifteenth birthday. Long held as a given, their familial unity is revealed to be built upon a secret: all seven siblings are adopted. While initially determined to maintain their established dynamic, shifting affections begin to complicate their relationships, particularly as the elder brother, Arata, becomes the focus of unexpected attention from his sisters.

The narrative explores the complexities of family bonds when confronted with hidden truths and evolving emotions. It examines themes of identity, belonging, and the delicate balance between tradition and personal desire within a privileged household. The story unfolds with a quiet intensity, focusing on character interactions and the subtle tensions arising from this newfound knowledge, as Arata struggles to safeguard the fragile unity he holds dear.