Closed single-parent household

Elena has lost her husband and lives with her son Shinji. Shinji lived comfortably as a single-parent family, but before he knew it, he began to stay at home. One day, Elena gently accepts Shinji, who has been innocently spoiled, as her mother. However, there was a sharp light in Shinji's eyes that made him aware of Elena as a "woman"... Then, Elena, who has been raped by Shinji, consults Hibino, who has always been by her side supporting her, but Shinji finds out...