[ENGLISH-SUBTITLE] JUC-661 Brother's Wife Confinement and play ~My Sister-in-Law is Mine~ Rei Mizuna

Rei is a young wife who is married to her boss at work and lives a comfortable life with her brother-in-law, Mamoru. One day, while her husband is away on a business trip, Mamoru tells her about the existence of the basement. She heads there curiously, bu