Summary
Death was venomous blue flames for Enji, jagged ice and frostbite for Rei—a certain karma from their eldest son, cruelly fitted for both. Shūbun brought them back, back to regretted pain, regretted mistakes—yet saving their family seemed too impossible, for he was an atoning Enji and she an embittered Rei, and their fatal history together has always been notorious. [Time Travel AU]