A young woman named Sakura Matou, with the sins she has committed, drowns in the murky darkness. A young man named Shirou Emiya, who vowed to protect Sakura, throws himself into the raging battle to put a stop to the Holy Grail War. Illyasviel von Einzbern confronts her own fate, while Zouken Matou uses Sakura to try to fulfill his own desires.
