UchiKano: Living With My Sister

Description
The second game in the UchiKano series is essentially a "what if" scenario which explores what would have happened if Riho had moved in instead of Ayame. Like its predecessor, it is an adult visual novel with a linear plot where the player's choices do not affect the outcome of the story. The game features voice acting for the significant female characters.
Once again, the story follows Keisuke Tachibanaki, a young man who works a satisfying job but is starting to become saddened by living alone. As if in response for his desire for companionship, his younger sister Riho unexpectedly moves in so that she can study for her exams away from the virus that their parents have caught. Riho has always liked Keisuke as more than just her older brother, and the more time he spends playing house with her, the more Keisuke begins to feel those feelings reciprocated, and their relationship changes from one of siblings to one of lovers.