Sisterly Sin

A 3D visual novel following Alex, an 18-year-old college student who has recently moved to a new city with his mother and stepfather. At college, Alex meets Christina, an economics teacher with charm and mystery. Their relationship gradually becomes more intimate than what typically exists between a student and instructor. The game features player choices that shape the narrative toward multiple possible endings, blending romance, drama, and slice-of-life elements with animated sequences. The story hints at secrets surrounding Christina's character that drive the plot forward.