"Sina," who grew up in a nursing hospital (orphanage) separated from her family since childhood due to her frail body. Sina, who always longed for a "home" with her family, will return to the house where her family is after 9 years of separation. However, contrary to expectations, her family feels somehow strange. A beautiful mansion, warm food, and a soft bed. Everything looks as she had hoped. But, strange things slowly start happening to Sina who feels like a stranger...