Sisterly Sin

Alex, an 18-year-old freshman, has just moved to a new city with his mother and stepfather and started college. There he meets Christina, a charming economics teacher, and the two develop an unusually close relationship that goes beyond typical student-teacher boundaries. As their connection deepens, Alex begins to suspect that Christina harbors secrets that may complicate their growing bond. This visual novel explores romance, drama, and the consequences of choices made in matters of the heart, with multiple possible endings determined by player decisions.