In this captivating adult visual novel, Sister-in-law Affair, main character, Jessica(his wife) and Laura(his sister-in-law) find themselves in an unexpected love triangle.

As their lives intertwine, desires and passions ignite, leading to secret encounters and intense connections. Jessica's initial suspicion evolves into curiosity and acceptance, as she silently supports Main character and Laura's growing bond.

Along their journey, they explore the complexities of desire, trust, and unconventional love, embracing their unique dynamic and discovering fulfillment in their shared experiences.