Shirou Emiya's days follow a quiet routine built around classmate Sakura Matou, who lets herself into his house every morning to cook, until the Fifth Holy Grail War begins without warning. Sakura starts falling mysteriously ill, and Shirou realizes she is caught up in the fighting as an unwilling Master, which turns a war he wanted no part of into the only way to keep her safe. This manga adapts Heaven's Feel, the third and final route of TYPE-MOON's original Fate/stay night visual novel, running alongside the earlier Fate/stay night and Unlimited Blade Works manga adaptations.